C31232233133313221211113313331333132313331322121111121111331123122211   >>    C3123223313331322121111331333133313231333132212111112111133112312221   <<    C31232233133313221211113313331333132313331322121111121111331123122213   >>      C31232233133313221211113313331333132313331322121111121111331123122212   >>