stuck, 96 bytes

Result

WA

Duration

493ms

Code [DL]

ssss["x:map(int,x.split())"mT"x:[x[3]-e for e in x]"mT]yu]u]u][
______________
1&u5&u6&*u3&u8*-*

stdin

50 01 47
13 24 99
51 37 21
08 64 35

stdout

[-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14][-42, 63, -12, -5, 40, -64, -43, 27, 14]632752-880

stderr

strace