#yuki841

l=raw_input().split()
if (l[0]=='Sat' or l[0]=='Sun') and not (l[1]=='Sat' or l[1]=='Sun'):
 print '8/32'
elif (l[0]=='Sat' or l[0]=='Sun') and (l[1]=='Sat' or l[1]=='Sun'):
 print '8/33'
else:
 print '8/31'