golfish, 101 bytes

Result

WA

Duration

978ms

Code [DL]

00000000  d0 e2 07 10 d1 81 81 81  e1 80 00 e0 01 d4 d3 d7  |................|
00000010  12 12 20 ed e2 e3 80 81  00 e2 ed 20 12 d2 d5 01  |.. ........ ....|
00000020  e1 80 e2 06 d1 e1 80 08  80 e0 c0 e0 c0 d0 20 ed  |.............. .|
00000030  e2 d1 d3 d5 d5 12 e2 80  81 e3 07 11 81 00 e2 ed  |................|
00000040  20 01 12 e1 80 81 20 12  d2 d5 01 e1 00 e2 ed 80  | ..... .........|
00000050  e3 08 06 d1 c1 81 81 e1  81 80 11 d1 ff ed 20 d0  |.............. .|
00000060  c0 10 e1 06 d1                                    |.....|
00000065

stdin

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stdout

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                            11

stderr

/root/golfish/golfish.rb:280: warning: constant ::Fixnum is deprecated
/root/golfish/golfish.rb:91:in `+': nil can't be coerced into Integer (TypeError)
	from /root/golfish/golfish.rb:91:in `block in exec!'
	from /root/golfish/golfish.rb:49:in `loop'
	from /root/golfish/golfish.rb:49:in `exec!'
	from /root/golfish/golfish.rb:299:in `<main>'

strace