C31232233133313221211113313331333132313232233133313331311223331312323131   >>    C3123223313331322121111331333133313231323223313331333131122333131232313   <<    C31232233133313221211113313331333132313232233133313331311223331312323133   >>      C31232233133313221211113313331333132313232233133313331311223331312323132   >>