C111123313331323113313331333133313331323132333133313311231211211   >>    C11112331333132311331333133313331333132313233313331331123121121   <<    C111123313331323113313331333133313331323132333133313311231211213   >>      C111123313331323113313331333133313331323132333133313311231211212   >>