weeks = ['Sun','Mon','Tue','Wed','Thu','Fri','Sat']
S1,S2 = map(str, input().split())

if S1 == 'Sat' or S1 == 'Sun':
    weeks.remove(S1)
    if S2 == 'Sat' or S2 == 'Sun':
        print('8/33')
    else:
        print('8/32')
else:
    print('8/31')