C31232233133313221211113313331333132313331322121111331313212121   >>    C3123223313331322121111331333133313231333132212111133131321212   <<    C31232233133313221211113313331333132313331322121111331313212123   >>      C31232233133313221211113313331333132313331322121111331313212122   >>