rail, 131 bytes

Result

WA

Code [DL]

$ 'j'      #(c){j}(x)-@
 --(!x!)(!c!)#(c)(x)g<
$ 'main'@     #(x)(c)-@
 |@      \-uo--
 | \{j}i- \    >#
 9  \    >u-1q/
 \-1a--e/

stdin

6766744340440633866153694116918790474829378253550962704807570365726264535030225053720980436400233219

stdout

stderr

Crash: Stack underflow

strace