C3123121111331311213331333131133133313331331121111113313231323232321   >>    C312312111133131121333133313113313331333133112111111331323132323232   <<    C3123121111331311213331333131133133313331331121111113313231323232323   >>      C3123121111331311213331333131133133313331331121111113313231323232322   >>