C31232233133313221211113313331333132313331322121111121111132233132311311   >>    C3123223313331322121111331333133313231333132212111112111113223313231131   <<    C31232233133313221211113313331333132313331322121111121111132233132311313   >>      C31232233133313221211113313331333132313331322121111121111132233132311312   >>