rail, 138 bytes

Result

WA

Code [DL]

$ 'j'      #(c){j}(x)-@
 \-(!x!)(!c!)(c)(x)g<
              #(x)(c)-@

$ 'main'
 \@      
 | \-{j}i---
 9  \       >-ooo#
 \-1a-1es--/   

stdin

7629008378585671106113213667587665774710079260154971247547538352092097640101150755889949930489820922

stdout

10

stderr

Crash: Stack underflow

strace