01. Day of Week

# число -> вход
number = int(input())

if number == 1:
    print('Monday')
elif number == 2:
    print('Tuesday')
elif number == 3:
    print('Wednesday')
elif number == 4:
    print("Thursday")
elif number == 5:
    print('Friday')
elif number == 6:
    print('Saturday')
elif number == 7:
    print('Sunday')
else:
    print('Error')