C131121333133313233213331333133313331333133313223313223313331323132312323231   >>    C13112133313331323321333133313331333133313331322331322331333132313231232323   <<    C131121333133313233213331333133313331333133313223313223313331323132312323233   >>      C131121333133313233213331333133313331333133313223313223313331323132312323232   >>