class Problem0841:
    def solve(this):
        s1,s2 = input().split()
        if (s1 == "Sat" or s1 == "Sun") and (s2 != "Sat" and s2 != "Sun"):
            print("8/32")
        elif (s1 == "Sat" or s1 == "Sun") and (s2 == "Sat" or s2 == "Sun"):
            print("8/33")
        else:
            print("8/31")
if __name__ == "__main__":
    problem = Problem0841()
    problem.solve()