C31232233133313221211113313331333132313232233133313123231323132313112121   >>    C3123223313331322121111331333133313231323223313331312323132313231311212   <<    C31232233133313221211113313331333132313232233133313123231323132313112123   >>      C31232233133313221211113313331333132313232233133313123231323132313112122   >>