C13112133313331323321333133313331333133313331333131133132313331333221312321   >>    C1311213331333132332133313331333133313331333133313113313231333133322131232   <<    C13112133313331323321333133313331333133313331333131133132313331333221312323   >>      C13112133313331323321333133313331333133313331333131133132313331333221312322   >>