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ravi2krishnaravi2krishna
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web cal
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‎.gitignore‎

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# Created by https://www.gitignore.io/api/java,macos,eclipse,java-web
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### Eclipse ###
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.metadata
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bin/
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tmp/
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*.tmp
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*.bak
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*.swp
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*~.nib
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local.properties
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.settings/
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.loadpath
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.recommenders
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# External tool builders
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.externalToolBuilders/
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# Locally stored "Eclipse launch configurations"
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*.launch
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# PyDev specific (Python IDE for Eclipse)
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*.pydevproject
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# CDT-specific (C/C++ Development Tooling)
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.cproject
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# Java annotation processor (APT)
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.factorypath
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# PDT-specific (PHP Development Tools)
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.buildpath
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# sbteclipse plugin
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.target
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# Tern plugin
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.tern-project
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# TeXlipse plugin
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.texlipse
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# STS (Spring Tool Suite)
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.springBeans
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# Code Recommenders
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.recommenders/
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# Scala IDE specific (Scala & Java development for Eclipse)
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.cache-main
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.scala_dependencies
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.worksheet
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### Eclipse Patch ###
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# Eclipse Core
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.project
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# JDT-specific (Eclipse Java Development Tools)
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.classpath
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### Java ###
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# Compiled class file
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*.class
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# Log file
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*.log
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# BlueJ files
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*.ctxt
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# Mobile Tools for Java (J2ME)
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.mtj.tmp/
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# Package Files #
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*.jar
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*.war
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*.ear
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*.zip
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*.tar.gz
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*.rar
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# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
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hs_err_pid*
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### Java-Web ###
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## ignoring target file
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target/
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### macOS ###
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*.DS_Store
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.AppleDouble
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.LSOverride
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# Icon must end with two \r
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Icon
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# Thumbnails
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._*
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# Files that might appear in the root of a volume
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.DocumentRevisions-V100
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.fseventsd
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.Spotlight-V100
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.TemporaryItems
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.Trashes
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.VolumeIcon.icns
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.com.apple.timemachine.donotpresent
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# Directories potentially created on remote AFP share
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.AppleDB
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.AppleDesktop
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Network Trash Folder
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Temporary Items
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.apdisk
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‎pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.web.cal</groupId>
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<artifactId>WebAppCal</artifactId>
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<packaging>war</packaging>
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<version>0.0.6</version>
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<name>WebAppCal Maven Webapp</name>
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<url>http://maven.apache.org</url>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.8.2</version>
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<scope>test</scope>
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</dependency>
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<!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api -->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>servlet-api</artifactId>
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<version>2.5</version>
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</dependency>
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</dependencies>
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<distributionManagement>
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<repository>
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<id>releases</id>
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<url>http://52.204.135.48:8081/nexus/content/repositories/releases</url>
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</repository>
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</distributionManagement>
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</project>

‎src/main/java/mypackage/Calculator.java‎

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package mypackage;
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import java.io.*;
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import javax.servlet.*;
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import javax.servlet.http.*;
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public class Calculator extends HttpServlet
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{
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public long addFucn(long first, long second){
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return first+second;
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}
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public long subFucn(long first, long second){
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return second-first;
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}
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public long mulFucn(long first, long second){
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return first*second;
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}
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public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
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{
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try
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{
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response.setContentType("text/html");
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PrintWriter out= response.getWriter();
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int a1= Integer.parseInt(request.getParameter("n1"));
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int a2= Integer.parseInt(request.getParameter("n2"));
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if(request.getParameter("r1")!=null)
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{
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out.println("<h1>Addition</h1>"+addFucn(a1, a2));
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}
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if(request.getParameter("r2")!=null)
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{
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out.println("<h1>Substraction</h1>"+subFucn(a1, a2));
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}
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if(request.getParameter("r3")!=null)
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{
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out.println("<h1>Multiplication</h1>"+mulFucn(a1, a2));
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}
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RequestDispatcher rd=request.getRequestDispatcher("/index.jsp");
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rd.include(request, response);
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}
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catch(Exception e)
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{
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}
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}
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}

‎src/main/webapp/WEB-INF/web.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
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<display-name>Servlet</display-name>
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<servlet>
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<servlet-name>Servlet</servlet-name>
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<servlet-class>mypackage.Calculator</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>Servlet</servlet-name>
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<url-pattern>/firstHomePage</url-pattern>
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</servlet-mapping>
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<welcome-file-list>
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<welcome-file>index.jsp</welcome-file>
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</welcome-file-list>
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</web-app>

‎src/main/webapp/index.jsp‎

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Calculator</title>
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</head>
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<body>
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<h1 style="text_align=center">Calculator</h1>
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<form action="firstHomePage" method="get">
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<label>first number:</label>
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<input type="text" name="n1" />
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<br />
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<label>Second number : </label>
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<input type="text" name="n2" />
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<br />
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<div>
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<label>
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<input type="radio" name="r1" value="add" />addition
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<br />
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</label>
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<label>
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<input type="radio" name="r2" value="sub" />subtraction
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<br />
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</label>
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<label>
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<input type="radio" name="r3" value="prod" />product
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<br />
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</label>
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</div>
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<input type="submit" value="submit" />
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</form>
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</body>
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</html>

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