s1,s2 = map(str,input().split())
if (s1 =='Sat' and s2 == 'Sun') or (s2 =='Sat' and s1 == 'Sun'):
    print('8/33')
elif s1 =='Sat' or s1 == 'Sun':
    print('8/32')
else:
    print('8/31')