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')