WHY

setlocal enabledelayedexpansion
for /l %%n in (1,1,8) do (
    if !maska_2%%n! equ !a4maska_2%%n! (
       set "a52=!a52!1"
    ) else (
       set "a52=!a52!0"
    )
)
echo;!a52%
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