by@__dAi00
WA
$ 'main'
\ /---o#
\-0(!x!)--i-{i}--e{~}<
@---/ \
\------------------@
$ 'i'
\ /-(!q!)(b)a#
\--1(!b!)0(!c!)-{d}(c)q{~}<
/ \
@--m(!b!)------/ \
\--[0001]----(b)(!c!)a1(c)----@
$ 'd' (dup)
\-(!d!)(d)(d)#
$ '~'
\
| /-t-\ #
| / \|
\-< |
\ /|
\-f-/ @0397529944633367382548414792265888889176912846986000090430892460317233787703881088012391615771906169
Crash: No valid move