C111123313121111121111331333133313331322121111331333133313331333223313112113231   >>    C11112331312111112111133133313331333132212111133133313331333133322331311211323   <<    C111123313121111121111331333133313331322121111331333133313331333223313112113233   >>      C111123313121111121111331333133313331322121111331333133313331333223313112113232   >>