qǔ cháng bǔ duǎn

ㄑㄩˇ ㄔㄤˊ ㄅㄨˇ ㄉㄨㄢˇ

Idiom

1to use this in place of that

2what you lose on the swings, you win on the roundabouts

3lit. use others' strengths to make up for one's weak points (idiom from Mencius)