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

else:
    print("8/31")