Non-zero exitcode 137
runtime: 0.013s cpu, 0.016s wall
memory used: 1048576 bytes
********** runguard stderr follows **********
/home/domjudge/domjudge/judgehost/bin/runguard: warning: command terminated with signal 9

Non-zero exitcode 1
runtime: 0.022s cpu, 0.024s wall
memory used: 3284992 bytes

Traceback (most recent call last):
  File "rank.py", line 2, in <module>
    print(int(a)+int(b)+int(c)+(d))
TypeError: unsupported operand type(s) for +: 'int' and 'str'