C31232233133313221211113313331311331333131323132333132313232331   >>    C3123223313331322121111331333131133133313132313233313231323233   <<    C31232233133313221211113313331311331333131323132333132313232333   >>      C31232233133313221211113313331311331333131323132333132313232332   >>