import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Solution1 {
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String input = br.readLine();
String arr[] = input.split("]");
String requiredString = "";
ArrayList list = new ArrayList<>();
for (int i = 0; i < arr.length; i++) {
requiredString = arr[i].substring(arr[i].indexOf("[ ") + 1);
String[] s = requiredString.split(",");
for (int j = 0; j < s.length; j++) {
list.add(s[j].trim());
}
}
List result = new ArrayList<>();
for (int i = 0; i < list.size(); i++) {
if (!result.contains(list.get(i))) {
result.add(list.get(i));
}
}
for (int i = 0; i < result.size(); i++) {
input = input.replace( result.get(i), String.valueOf(i + 1));
}
System.out.println(input);
for (int i = 0; i < result.size(); i++) {
System.out.println(String.format("[%d] %s", i + 1, result.get(i)));
}
}
}