C111112111133131121133133313331323133313221211111333133313231333133313221232311   >>    C11111211113313112113313331333132313331322121111133313331323133313331322123231   <<    C111112111133131121133133313331323133313221211111333133313231333133313221232313   >>      C111112111133131121133133313331323133313221211111333133313231333133313221232312   >>