day_of_the_week

day_of_the_week = int(input())
if day_of_the_week >=1 and day_of_the_week <=7:
    if day_of_the_week == 1:
        print("Monday")
    elif day_of_the_week == 2:
            print("Thusday")
    elif day_of_the_week == 2:
            print("Thusday")
    elif day_of_the_week == 3:
            print("Wednesday")
    elif day_of_the_week == 4:
            print("Thursday")
    elif day_of_the_week == 5:
            print("Friday")
    elif day_of_the_week == 6:
            print("Saturday")
    elif day_of_the_week == 7:
            print("Sunday")
else:
    print("Error")