02. Weekend or Working Day

# Monday, Tuesday, Wednesday, Thursday, Friday -> Working day
# Sunday , Saturday -> Weekend
# another -> Error

day_of_week = input()

if day_of_week == "Monday" or day_of_week == "Tuesday" or day_of_week == "Wednesday" or day_of_week == "Thursday" or day_of_week == "Friday":
    print("Working day")
elif day_of_week == "Saturday" or day_of_week == "Sunday":
    print("Weekend")
else:
    print("Error")