rail, 384 bytes

Result

WA

Code [DL]

$ 'main'
 \-0(!0!)0(!1!)0(!2!)0(!3!)0(!4!)0(!5!)\
                                       |
       /------(!9!)0(!8!)0(!7!)0(!6!)0-/
       |
       \---i-{p}--\
         /        |
         |        |
         \        |
          >{~}-e--/
         /
         |
         \--(0)o#

$ '~' (a -- b):
 \
 |   /-t-\ #
 |  /     \|
 \-<       |
    \     /|
     \-f-/ @

$ 'p'
 \----o---#

stdin

2038135042152072160708112169314128360769182573708857337810196583874607411857704352266081736248965186

stdout

20381350421520721607081121693141283607691825737088573378101965838746074118577043522660817362489651860

stderr

strace