Day of Week

day = int(input())

days = [1, 2, 3, 4, 5, 6, 7]

if day == (days[0]):
  print("Monday")
elif day == (days[1]):
  print("Tuesday")
elif day == (days[2]):
  print("Wednesday")
elif day == (days[3]):
  print("Thursday")
elif day == (days[4]):
  print("Friday")
elif day == (days[5]):
  print("Saturday")
elif day == (days[6]):
  print("Sunday")
else:
  print("Error")