bash-pure, 84 bytes

Result

WA

Code [DL]

while read -n 1 c;do a[c]+=@;done
for i in {0..9};do echo -n ${a[c]//@/$i};done;done

stdin

9412247646864462735938684209309737110947866727580344227553178814561986670405478450182100995974871556

stdout

stderr

/bin/bash: warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
/code.bash: line 2: syntax error near unexpected token `done'
/code.bash: line 2: `for i in {0..9};do echo -n ${a[c]//@/$i};done;done'

strace