Given a range from low to high and a number K. The task is to count the number which has the unit digit equal to K.
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case contains three numbers low, high and K.
For each test case, print the count of numbers in new line.
1 <= T <= 100
1 <= low <= high <= 109
0 <= K <= 9
4 9 4
3 35 3
Input : low = 3, high = 35, K = 3 Output : 4 Numbers are 3, 13, 23, 33.
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