have a question: How can GraphCast forecast the next 10 days if the input data also needs to have 40 steps to predict for the next 10 days?

This is input data:

datasets/source-era5_date-2022-01-01_res-1.0_levels-13_steps-40.nc
Batch 0:
2022-01-01T00:00:00.000000000
2022-01-01T06:00:00.000000000
2022-01-01T12:00:00.000000000
2022-01-01T18:00:00.000000000
2022-01-02T00:00:00.000000000
2022-01-02T06:00:00.000000000
2022-01-02T12:00:00.000000000
2022-01-02T18:00:00.000000000
2022-01-03T00:00:00.000000000
2022-01-03T06:00:00.000000000
2022-01-03T12:00:00.000000000
2022-01-03T18:00:00.000000000
2022-01-04T00:00:00.000000000
2022-01-04T06:00:00.000000000
2022-01-04T12:00:00.000000000
2022-01-04T18:00:00.000000000
2022-01-05T00:00:00.000000000
2022-01-05T06:00:00.000000000
2022-01-05T12:00:00.000000000
2022-01-05T18:00:00.000000000
2022-01-06T00:00:00.000000000
2022-01-06T06:00:00.000000000
2022-01-06T12:00:00.000000000
2022-01-06T18:00:00.000000000
2022-01-07T00:00:00.000000000
2022-01-07T06:00:00.000000000
2022-01-07T12:00:00.000000000
2022-01-07T18:00:00.000000000
2022-01-08T00:00:00.000000000
2022-01-08T06:00:00.000000000
2022-01-08T12:00:00.000000000
2022-01-08T18:00:00.000000000
2022-01-09T00:00:00.000000000
2022-01-09T06:00:00.000000000
2022-01-09T12:00:00.000000000
2022-01-09T18:00:00.000000000
2022-01-10T00:00:00.000000000
2022-01-10T06:00:00.000000000
2022-01-10T12:00:00.000000000
2022-01-10T18:00:00.000000000
2022-01-11T00:00:00.000000000
2022-01-11T06:00:00.000000000

And this is predicted data:
predictions.nc
Datetime values:
2022-01-01 06:00:00
2022-01-01 12:00:00
2022-01-01 18:00:00
2022-01-02 00:00:00
2022-01-02 06:00:00
2022-01-02 12:00:00
2022-01-02 18:00:00
2022-01-03 00:00:00
2022-01-03 06:00:00
2022-01-03 12:00:00
2022-01-03 18:00:00
2022-01-04 00:00:00
2022-01-04 06:00:00
2022-01-04 12:00:00
2022-01-04 18:00:00
2022-01-05 00:00:00
2022-01-05 06:00:00
2022-01-05 12:00:00
2022-01-05 18:00:00
2022-01-06 00:00:00
2022-01-06 06:00:00
2022-01-06 12:00:00
2022-01-06 18:00:00
2022-01-07 00:00:00
2022-01-07 06:00:00
2022-01-07 12:00:00
2022-01-07 18:00:00
2022-01-08 00:00:00
2022-01-08 06:00:00
2022-01-08 12:00:00
2022-01-08 18:00:00
2022-01-09 00:00:00
2022-01-09 06:00:00
2022-01-09 12:00:00
2022-01-09 18:00:00
2022-01-10 00:00:00
2022-01-10 06:00:00
2022-01-10 12:00:00
2022-01-10 18:00:00
2022-01-11 00:00:00