C111123313331323113313331323133313331311331311331333133323222233311   >>    C11112331333132311331333132313331333131133131133133313332322223331   <<    C111123313331323113313331323133313331311331311331333133323222233313   >>      C111123313331323113313331323133313331311331311331333133323222233312   >>