C111113331333132322331333133313331333133323223313311211111213331312121   >>    C11111333133313232233133313331333133313332322331331121111121333131212   <<    C111113331333132322331333133313331333133323223313311211111213331312123   >>      C111113331333132322331333133313331333133323223313311211111213331312122   >>