@altirste21 오래 전 is a=b the end answer? so the conclusion is that the problem statement is correct, is that it? 2026-08-12 18:49 [ytcid:UgzfcTSKK0zLzJrpGgF4AaABAg] is a=b the end answer? so the conclusion is that the problem statement is correct, is that it?