{"trustable":false,"sections":[{"title":"","value":{"format":"MD","content":"## 提交按鈕在左側\n\n## The submit button is on the left"}},{"title":"Sample Input","value":{"format":"MD","content":"\u003cpre\u003e2 1\n8 4\n4 7\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"MD","content":"\u003cpre\u003e0\n1\n0\u003c/pre\u003e"}}]}