starry, 348 bytes

Result

AC

Code [DL]

     +               + +  *     +* `  + ,           + +  *                 +* *      +  +      +'   `  +         + +  *         +*  *  +      + *` +   '    +*  +      + * + '    +     +  `  + +         + +  *         +*    *      +     '    `   +   + +.   +      + *     ` +    '    +         + +  *         +*   *  +      +* +               + *  '

Disassembly

[[:push, 0],
 [:push, 10],
 [:dup],
 [:*],
 [:push, 0],
 [:+],
 [:label, 1],
 [:swap],
 [:char_in],
 [:push, 6],
 [:dup],
 [:*],
 [:push, 12],
 [:+],
 [:-],
 [:push, 1],
 [:swap],
 [:push, 1],
 [:jump, 0],
 [:label, 3],
 [:swap],
 [:push, 4],
 [:dup],
 [:*],
 [:push, 4],
 [:+],
 [:*],
 [:swap],
 [:push, 1],
 [:-],
 [:label, 0],
 [:dup],
 [:jump, 3],
 [:pop],
 [:+],
 [:swap],
 [:push, 1],
 [:-],
 [:dup],
 [:jump, 1],
 [:pop],
 [:push, 0],
 [:label, 2],
 [:swap],
 [:dup],
 [:push, 4],
 [:dup],
 [:*],
 [:push, 4],
 [:+],
 [:%],
 [:push, 1],
 [:jump, 5],
 [:label, 4],
 [:rotate],
 [:rotate],
 [:dup],
 [:num_out],
 [:rotate],
 [:push, 1],
 [:-],
 [:label, 5],
 [:dup],
 [:jump, 4],
 [:pop],
 [:push, 4],
 [:dup],
 [:*],
 [:push, 4],
 [:+],
 [:/],
 [:swap],
 [:push, 1],
 [:+],
 [:dup],
 [:push, 10],
 [:-],
 [:jump, 2]]

stdin

1511886448972520020353413547549220188759261640658061153156594926990222233584370041257471095444483982

stdout

0000000000111111111112222222222222333333334444444444444455555555555556666666777777888888888999999999

stderr

strace