Ones

Time Limit
1s
Memory Limit
65536KB
Judge Program
Standard
Ratio(Solve/Submit)
0.00%(0/0)
Description:

Given any integer 0 <= n <= 10000 not divisible by 2 or 5, some multiple of n is a number which in decimal notation is a sequence of 1's. How many digits are in the smallest such a multiple of n?

Input:

Each line contains a number n.

Output:

Output the number of digits.

Sample Input:
3 
7 
9901
Sample Output:
3
6
12

Submit