C3123223313331322121111331333133313231333132212111112111111121123311   >>    C312322331333132212111133133313331323133313221211111211111112112331   <<    C3123223313331322121111331333133313231333132212111112111111121123313   >>      C3123223313331322121111331333133313231333132212111112111111121123312   >>