abcdshenji

@echo off
::1
set /p var=enter:&call,echo %%var%%
::2
set /p num=enter:
set num1=%num:~,1%
set num2=%num:~1,1%
set /a sum=%num1%+%num2%
set /p=%num1%+%num2%=%sum%<nul
pause>nul
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