C31232233133313221211113313331333132313331333133313331333133313121111331212131   >>    C3123223313331322121111331333133313231333133313331333133313331312111133121213   <<    C31232233133313221211113313331333132313331333133313331333133313121111331212133   >>      C31232233133313221211113313331333132313331333133313331333133313121111331212132   >>