golfscript, 21 bytes

Result

WA

Duration

1007ms

Code [DL]

8/{(;4<n*~@@.@=@@if}%

stdin

944 669
392 327
341 889
699 329
497 718
366 869
122 423
438 311
155 516
171 711
766 245
264 886
492 299
517 117
197 464
799 991
654 445
476 366
337 231
651 784
844 299
134 335
162 945
566 668
575 531
199 965
131 132
751 517
587 778
148 647
511 559
589 826

stdout

62137848512427794671242659117859

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffc683a9e70 /* 9 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55e5f6e08d70 /* 9 vars */ <unfinished ...>
12    execve("/usr/local/ruby-2.7.1/bin/ruby", ["/usr/local/ruby-2.7.1/bin/ruby", "/root/golfscript.rb", "/volume/CODE"], 0x55e5f7824028 /* 9 vars */) = 0
11    <... execve resumed>)             = 0
11    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
12    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=4, si_stime=3} ---
10    +++ exited with 0 +++