C111123313331323113313331333133313331323132333133313331322311311321311   >>    C11112331333132311331333133313331333132313233313331333132231131132131   <<    C111123313331323113313331333133313331323132333133313331322311311321313   >>      C111123313331323113313331333133313331323132333133313331322311311321312   >>