题解 | #字母统计#

a=list('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'.split())
dict1={}

while True:
    for i in range(len(a)):
        dict1[a[i]]=0
    try:
        tdata=input()
        for i in range(len(tdata)):
            if 'A'<=tdata[i]<='Z':
                dict1[tdata[i]]+=1
        for key,value in dict1.items():
            print(f'{key}:{value}')
    except EOFError:
        break