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  1. FS="+|="{for(a=$3;s=$2%$1-s;)print s;$0=a%$1?"no":"yes"}a
Success #stdin #stdout 0s 5320KB
stdin
4
2x+3y=5
6x+8y=25
4x+4y=11
8x+6y=4
stdout
1
no
2
no
no
6
no