C111112111133131121133133313331323133313221131211113313232212111211   >>    C11111211113313112113313331333132313331322113121111331323221211121   <<    C111112111133131121133133313331323133313221131211113313232212111213   >>      C111112111133131121133133313331323133313221131211113313232212111212   >>