backhand, 15 bytes

Result

AC

Duration

803ms

Code [DL]

Wii:iEi+s9iIi o

stdin

433 881
942 388
121 553
259 254
871 554
194 331
511 161
539 394
798 998
124 547
852 526
743 453
416 614
977 397
447 843
166 331
345 749
587 884
522 629
518 812
129 995
658 795
188 886
699 959
378 826
211 611
944 293
626 637
433 335
561 118
641 421
753 132

stdout

33525313955467867828978981463141

stderr

Tried to print invalid value (-1) as character

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffdcfb27cd0 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55d83084dd80 /* 7 vars */) = 0
12    execve("/usr/bin/python3", ["/usr/bin/python3", "/root/Backhand/Backhand_Interpre"..., "/volume/CODE"], 0x55d832841050 /* 7 vars */) = 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 1 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=1, si_utime=3, si_stime=0} ---
10    +++ exited with 1 +++