C31232233133313221211113313331333132313331333133313121111331323233311   >>    C3123223313331322121111331333133313231333133313331312111133132323331   <<    C31232233133313221211113313331333132313331333133313121111331323233313   >>      C31232233133313221211113313331333132313331333133313121111331323233312   >>