python

Letters = 0
Digits = 0
Others = 0

x = input()

for i in x:
    if i.isdigit():
        Digits += 1
    elif i.isalpha():
        Letters += 1
    else:
        Others += 1
print("Letters={}".format(Letters))
print("Digits={}".format(Digits))
print("Others={}".format(Others-1))