C13112133313331323321333133313331333133313331311331323133313131122112322221   >>    C1311213331333132332133313331333133313331333131133132313331313112211232222   <<    C13112133313331323321333133313331333133313331311331323133313131122112322223   >>      C13112133313331323321333133313331333133313331311331323133313131122112322222   >>