C111112111133131121133133313331323133313221211111333133313331333133311212331321   >>    C11111211113313112113313331333132313331322121111133313331333133313331121233132   <<    C111112111133131121133133313331323133313221211111333133313331333133311212331323   >>      C111112111133131121133133313331323133313221211111333133313331333133311212331322   >>