C31232233133313221211113313331333132313331322121111333333132313232211212121   >>    C3123223313331322121111331333133313231333132212111133333313231323221121212   <<    C31232233133313221211113313331333132313331322121111333333132313232211212123   >>      C31232233133313221211113313331333132313331322121111333333132313232211212122   >>