stuck, 48 bytes

Result

WA

Duration

518ms

Code [DL]

ssss["x:map(int,x.split())"mT"]_u-@_@;-;u;-;[":T

stdin

03 56 85
36 72 44
63 69 71
15 03 83

stdout

[[12, -53, -2], [-21, -69, 39], [-48, -66, 12]]

stderr

strace