def MyChar():
    Char = []
    for i in range(65, 91):
        Char += chr(i)
    for i in range(97, 123):
        Char += chr(i)
    return Char

def MyNumber():
    Number = []
    for i in range(48, 58):
        Number += chr(i)
    return Number

def MyCount(string):
    c = 0
    n = 0
    for i in string:
        if i in MyChar():
            c += 1
        elif i in MyNumber():
            n += 1
    return c, n

print(MyCount("123 Nguyen Minh Duc"))