crystal, 28 bytes

Result

WA

Duration

1929ms

Code [DL]

a=`cat`.split.map &.to_i
p a

stdin

49 12 61
73 61 37
91 68 34
81 27 09

stdout

[49, 12, 61, 73, 61, 37, 91, 68, 34, 81, 27, 9]

stderr

strace