C111123313331323113313331333132313331311331312111133133313111323311   >>    C11112331333132311331333133313231333131133131211113313331311132331   <<    C111123313331323113313331333132313331311331312111133133313111323313   >>      C111123313331323113313331333132313331311331312111133133313111323312   >>