C111112111133131121133133313331333133313331323133313331333133313231323112232321   >>    C11111211113313112113313331333133313331333132313331333133313331323132311223232   <<    C111112111133131121133133313331333133313331323133313331333133313231323112232323   >>      C111112111133131121133133313331333133313331323133313331333133313231323112232322   >>