C131121333133313233213331333133313331333133313331333133313331333132313332212311   >>    C13112133313331323321333133313331333133313331333133313331333133313231333221231   <<    C131121333133313233213331333133313331333133313331333133313331333132313332212313   >>      C131121333133313233213331333133313331333133313331333133313331333132313332212312   >>