if a == 'Sat' and b == 'Sun' or b == 'Sat' and a == 'Sun' or a == 'Sat' and b == 'Sat' or a == 'Sun' and b == 'Sun':
    print("8/33")
elif a == 'Sat' or a == 'Sun':
    print("8/32")
else:
    print("8/31")