stuck, 7 bytes

Result

WA

Duration

538ms

Code [DL]

[s s s]

stdin

93 02 49
79 15 26
34 19 89
93 33 58

stdout

stderr

Traceback (most recent call last):
  File "stuck.py", line 167, in <module>
    main()
  File "stuck.py", line 162, in main
    process(prog, stack=[], t=0, nest=0)
  File "stuck.py", line 131, in process
    print ''.join(map(str,stack))
TypeError: argument 2 to map() must support iteration

strace