C111123313331323113313331333133313331323132333133313331322331323112113121   >>    C11112331333132311331333133313331333132313233313331333132233132311211312   <<    C111123313331323113313331333133313331323132333133313331322331323112113123   >>      C111123313331323113313331333133313331323132333133313331322331323112113122   >>