C3123223313331322121111331333133313231333132212111112111111331333223232233231   >>    C312322331333132212111133133313331323133313221211111211111133133322323223323   <<    C3123223313331322121111331333133313231333132212111112111111331333223232233233   >>      C3123223313331322121111331333133313231333132212111112111111331333223232233232   >>