C111123313331323113313331333133313331323132333133313331322311312321   >>    C11112331333132311331333133313331333132313233313331333132231131232   <<    C111123313331323113313331333133313331323132333133313331322311312323   >>      C111123313331323113313331333133313331323132333133313331322311312322   >>