S1,S2 = input().split()
cnt = 0

if S1 == "Sun" or S1 == "Sat":
    cnt += 1
    
if S2 == "Sun" or S2 == "Sat":
    cnt += 1
    
if cnt == 0:
    print("8/31")
elif cnt == 1:
    print("8/32")
else:
    print("8/33")