C111112111133131121133133313331333133313331323133313331333133313231121211321   >>    C11111211113313112113313331333133313331333132313331333133313331323112121132   <<    C111112111133131121133133313331333133313331323133313331333133313231121211323   >>      C111112111133131121133133313331333133313331323133313331333133313231121211322   >>