C111113331333132322331333133313331323133313233213133313331311312111113232211211   >>    C11111333133313232233133313331333132313331323321313331333131131211111323221121   <<    C111113331333132322331333133313331323133313233213133313331311312111113232211213   >>      C111113331333132322331333133313331323133313233213133313331311312111113232211212   >>