{"trustable":true,"sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eXét một dãy số \u003ci\u003eF\u003c/i\u003e\u003csub\u003e\u003ci\u003ei\u003c/i\u003e\u003c/sub\u003e thỏa mãn các điều kiện sau:\u003cbr\u003e\u003c/div\u003e\u003c/div\u003e\u003cdiv class\u003d\"problem_centered_picture\"\u003e\u003cimg src\u003d\"CDN_BASE_URL/dd4a26bc49b11f073b9e1a9e50d76463?v\u003d1703404338\" border\u003d\"0\" alt\u003d\"Minh họa vấn đề\"\u003e\u003c/div\u003e\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eTìm số lượng ước số khác nhau của \u003ci\u003eF\u003c/i\u003e\u003csub\u003e\u003ci\u003en\u003c/i\u003e\u003c/sub\u003e.\u003c/div\u003e\u003c/div\u003e"}},{"title":"Nhập","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eTệp nhập chứa duy nhất một số nguyên \u003ci\u003en\u003c/i\u003e (1 ≤ \u003ci\u003en\u003c/i\u003e ≤ 10\u003csup\u003e6\u003c/sup\u003e).\u003c/div\u003e\u003c/div\u003e"}},{"title":"Đầu ra","value":{"format":"HTML","content":"\u003cdiv class\u003d\"problem_par\"\u003e\u003cdiv class\u003d\"problem_par_normal\"\u003eXuất ra kết quả theo modulo 10\u003csup\u003e9\u003c/sup\u003e + 7.\u003c/div\u003e\u003c/div\u003e"}},{"title":"Ví dụ 1","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e3\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e4\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e"}}]}