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4791: Ace It!

内存限制：256 MB 时间限制：2 S
题面：传统 评测方式：文本比较 上传者：
提交：1 通过：1
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题目描述

F. Ace It!
time limit per test
2 seconds
memory limit per test
64 megabytes
input
standard input
output
standard output
Input
The only line of the input is a string of 7 characters. The first character is letter A, followed by 6 digits. The input is guaranteed to be valid (for certain definition of "valid").
Output
Output a single integer.
Examples
Input 
A221033
Output 
21
Input 
A223635
Output 
22
Input 
A232726
Output 
23

输入样例 复制

输出样例 复制

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