C111112111133131121133133313331323133313221131211113313232231221   >>    C11111211113313112113313331333132313331322113121111331323223122   <<    C111112111133131121133133313331323133313221131211113313232231223   >>      C111112111133131121133133313331323133313221131211113313232231222   >>