import sys
input=lambda: sys.stdin.readline().rstrip()
S=set()
S.add("Sat")
S.add("Sun")
s1,s2=map(str,input().split())
if s1 in S and s2 in S:
  print("8/33")
elif s1 in S:
  print("8/32")
else:
  print("8/31")