C111113331333132322331333133313331311331323133313221333132313232233121   >>    C11111333133313232233133313331333131133132313331322133313231323223312   <<    C111113331333132322331333133313331311331323133313221333132313232233123   >>      C111113331333132322331333133313331311331323133313221333132313232233122   >>