S_1, S_2 = input().split()

if S_1 == "Sat" and S_2 == "Sat" or S_1 == "Sun" and S_2 == "Sun" or "Sun" and S_2 == "Sat" or "Sat" and S_2 == "Sun":
    print("8/33")

elif S_1 == "Sat" or S_2 == "Sat" or S_1 == "Sun" or S_1 == "Sun":
    print("8/32")

else:
    print("8/31")