rail, 241 bytes

Result

WA

Code [DL]

$ 'j'
 \             /-(!c!)(n)1s{j}(c)#
  \-(!n!)(n)0q<
               \-1a#

$ 'k'
 \             /-(n)1s{k}0#
  \-(!n!)(n)0q<
               #
$ 'main'   /{j}i-\
 \         |     |
  \        \   /-/
   \-25m{k}--e<
               \--ooo#

stdin

1618684041182688647589901668058357261483131816904270177908015013399510977883241878114965394133628904

stdout

10175

stderr

strace