C31232233133313221211113313331333132313331333133313331333133313121111332223231   >>    C3123223313331322121111331333133313231333133313331333133313331312111133222323   <<    C31232233133313221211113313331333132313331333133313331333133313121111332223233   >>      C31232233133313221211113313331333132313331333133313331333133313121111332223232   >>