C111123313331323113313331323133313331311331311331333132221212311   >>    C11112331333132311331333132313331333131133131133133313222121231   <<    C111123313331323113313331323133313331311331311331333132221212313   >>      C111123313331323113313331323133313331311331311331333132221212312   >>