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EICBNLOCK - Combination Lock |
Phuc as a combination block which is represented by n rotating disks with digits from 0 to 9 written on them. He has to turn some disks so that the combination of digits on the disks forms a secret combination. In one move, he can rotate one disk one digit forwards or backwards. In particular, in one move he can go from digit 0 to digit 9 and vice versa. What minimum number of actions does he need for that?
Input
Input description...
Output
Output description...
Example
Input: 5 82195 64723 Output: 13