CF1553A.Digits Sum

传统题 时间 2000 ms 内存 256 MiB 3 尝试 1 已通过 1 标签

Digits Sum

Let's define S(x)S(x) to be the sum of digits of number xx written in decimal system. For example, S(5)=5S(5) = 5, S(10)=1S(10) = 1, S(322)=7S(322) = 7.

We will call an integer xx interesting if S(x+1)<S(x)S(x + 1) \lt S(x). In each test you will be given one integer nn. Your task is to calculate the number of integers xx such that 1xn1 \le x \le n and xx is interesting.

Input

The first line contains one integer tt (1t10001 \le t \le 1000)  — number of test cases.

Then tt lines follow, the ii-th line contains one integer nn (1n1091 \le n \le 10^9) for the ii-th test case.

Output

Print tt integers, the ii-th should be the answer for the ii-th test case.

Note

The first interesting number is equal to 99.

Samples

5
1
9
10
34
880055535
0
1
1
3
88005553

在线编程 IDE

建议全屏模式获得最佳体验