C131121333133313233213331333133313331333131133133313331311331333132313233321   >>    C13112133313331323321333133313331333133313113313331333131133133313231323332   <<    C131121333133313233213331333133313331333131133133313331311331333132313233323   >>      C131121333133313233213331333133313331333131133133313331311331333132313233322   >>