that is what my AC prog gives on some tests:
n=7, res=1
n=7777, res=2340
n=77777, res=23412
n=99997, res=30101
n=99998, res=30102
n=52251, res=15728
n=55555, res=16723
n=100000, res=30102

6 1
66 19
666 200
6666 2006
66666 20068
666666 200686
6666666 2006866
66666666 20068666
666666666 200686663

Edited by author 16.02.2010 08:43