@echo off
set /p UserInput=Rozmyslel sis poradne co zmacknes? [Y/N]:
set UserChoice=%UserInput:~0,1%
if "%UserChoice%"=="y" set UserChoice=Y
if "%UserChoice%"=="n" set UserChoice=N
if "%UserChoice%"=="Y" (
    echo HAHAHA to je cesky
) 
if "%UserChoice%"=="N" (
    echo GAGAGA to je rusky
) 
pause