a,b = map(str, input().split())
if (a == 'Sat' or a == 'Sun') and (b != 'Sat' and b != 'Sun'):
    print('8/32')
elif (a == 'Sat' or a == 'Sun') and (b == 'Sat' or b == 'Sun'):
    print('8/33')
else:
    print('8/31')