C3123121111331311213331333131133133313331333133313231323223323131   >>    C312312111133131121333133313113313331333133313331323132322332313   <<    C3123121111331311213331333131133133313331333133313231323223323133   >>      C3123121111331311213331333131133133313331333133313231323223323132   >>