C111112111133131121133133313331333133313331322121111331333133313231311332332321   >>    C11111211113313112113313331333133313331333132212111133133313331323131133233232   <<    C111112111133131121133133313331333133313331322121111331333133313231311332332323   >>      C111112111133131121133133313331333133313331322121111331333133313231311332332322   >>