C111123313331323113313331333133313331323132333132313331323311231   >>    C11112331333132311331333133313331333132313233313231333132331123   <<    C111123313331323113313331333133313331323132333132313331323311233   >>      C111123313331323113313331333133313331323132333132313331323311232   >>