zzuli OJ 1024: 计算字母序号

Description

Input

Output

Sample Input

Sample Output

HINT

Source

#include<stdio.h>
#include<ctype.h>

int main(void)
{
	char ch;
	int index;

	ch = getchar(); //读入一个字符存入ch
	ch = tolower(ch); //转换为小写字母
	index = ch - 'a' + 1; //计算序号
	printf("%d\n", index);
	return 0;
}