C111112111133131121133133313331323133313221211111333133313132332321   >>    C11111211113313112113313331333132313331322121111133313331313233232   <<    C111112111133131121133133313331323133313221211111333133313132332323   >>      C111112111133131121133133313331323133313221211111333133313132332322   >>