print("YNEOS"[input().count('x')>=8::2]) print("YNEOS"[input().count('x')>=8::2]) print "YNEOS"[input().count('x')>=8::2] "YNEOS" input().count('x')>=8::2 input().count('x')>=8 input().count('x') ().count () input count 'x' 8 2
print("YNEOS"[input().count('x')>=8::2])