a=input().split()
if a[0]=="Sun" or a[0]=="Sat" and a[1]!="Sun" and a[1]!="Sat":
    print("8/32")
elif a[0]=="Sun" or a[0]=="Sat" and a[1]=="Sun" or a[1]=="Sat":
    print("8/33")
else:
    print("8/31")