C31232233133313221211113313331333132313331333133313121111331333133311211323311   >>    C3123223313331322121111331333133313231333133313331312111133133313331121132331   <<    C31232233133313221211113313331333132313331333133313121111331333133311211323313   >>      C31232233133313221211113313331333132313331333133313121111331333133311211323312   >>