s1, s2 = input().split()

if (s1 == "Sun" or s1 == "Sat") and (s2 == "Sun" or s2 == "Sat"):
    print("8/33")

elif (s1 == "Sun" or s1 == "Sat") or (s2 == "Sun" or s2 == "Sat"):
    print("8/32")

else:
    print("8/31")