C111113331333132322331333133313331311331311331323133313232211211   >>    C11111333133313232233133313331333131133131133132313331323221121   <<    C111113331333132322331333133313331311331311331323133313232211213   >>      C111113331333132322331333133313331311331311331323133313232211212   >>