import sys
readline=sys.stdin.readline

S1,S2=readline().split()
S1=S1 in ("Sat","Sun")
S2=S2 in ("Sat","Sun")
if S1 and not S2:
    ans="8/32"
elif S1 and S2:
    ans="8/33"
else:
    ans="8/31"
print(ans)