C111123313331323113313331323133313331311331311331333133313221221   >>    C11112331333132311331333132313331333131133131133133313331322122   <<    C111123313331323113313331323133313331311331311331333133313221223   >>      C111123313331323113313331323133313331311331311331333133313221222   >>