{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"\u003cp\u003e给你12个实数,计算一下它们的平均数!\u003c/p\u003e\n\u003cp\u003e\u003c/p\u003e\n\u003cp\u003e是不是简单的不敢相信。\u003c/p\u003e"}},{"title":"Input","value":{"format":"HTML","content":"一共12行每行一个实数。"}},{"title":"Output","value":{"format":"HTML","content":"输出:$平均数,结果保留两位小数。"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e\n5874.1\n6859\n2669.36\n25874.3\n5487.6\n9854.45\n1587.35\n3125.25\n15821.25\n3698.25\n3695.99\n15932.36\n\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e\n$8373.27\u003c/pre\u003e"}}]}