Daily questions 2019.9.30

# coding=utf-8
"""根据输入的字母判断星期几"""
letter = input("please input:")

if letter == 'S':
    print('please input second letter:')
    letter = input("please input:")
    if letter == 'a':
        print('Saturday')
    elif letter == 'u':
        print('Sunday')
    else:
        print('data error')

elif letter == 'F':
    print('Friday')

elif letter == 'M':
    print('Monday')

elif letter == 'T':
    print('please input second letter')
    letter = input("please input:")

    if letter == 'u':
        print('Tuesday')
    elif letter == 'h':
        print('Thursday')
    the else: 
        Print ( 'Data error') 

elif Letter == 'W is': 
    Print ( 'catalog on Wednesday') 
the else: 
    Print ( 'Data error') 
# finally holiday