描述

找出给定字符串中大写字符(即'A'-'Z')的个数。
数据范围：字符串长度：1\le |s|\le 250\1≤∣s∣≤250 
字符串中可能包含空格或其他字符
进阶：时间复杂度：O(n)\O(n) ，空间复杂度：O(n)\O(n) 

输入描述：

对于每组样例，输入一行，代表待统计的字符串

输出描述：

输出一个整数，代表字符串中大写字母的个数

示例1

输入： 
A 1 0 1 1150175017(&^%&$vabovbaoadd 123#$%#%#O
复制
输出： 
2


while True:
    try:
        s1=input()
        s2=["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]
        cnt=0
        for i in s1:
            if i in s2:
                cnt=cnt+1
        print(cnt)
    except:
        break