S1, S2 = map(str, input().split())
if (S1 == "Sun" or S1 == "Sat") and (S2 == "Sun" or S2 == "Sat"):
  print("8/33")
elif (S1 == "Sun" or S1 == "Sat") and (S2 != "Sun" or S2 != "Sat"):
  print("8/32")
else:
  print("8/31")