屑くず入いれ屑くず出だし

expression

garbage in, garbage out

Computing principle that flawed input produces flawed output. Often used as a set phrase.

• データが間ま違ちがっていると、屑くず入いれ屑くず出だしで結けっ果かも信しん用ようできない。

  If the data is wrong, it's garbage in, garbage out, and the results can't be trusted either.