C312322331333132212111133133313331313331323133313232233131121221   >>    C31232233133313221211113313331333131333132313331323223313112122   <<    C312322331333132212111133133313331313331323133313232233131121223   >>      C312322331333132212111133133313331313331323133313232233131121222   >>