C111123313331323113313331333133313331323123231333133313132322122311   >>    C11112331333132311331333133313331333132312323133313331313232212231   <<    C111123313331323113313331333133313331323123231333133313132322122313   >>      C111123313331323113313331333133313331323123231333133313132322122312   >>