{"trustable":true,"prependHtml":"\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\" type\u003d\"text/javascript\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv class\u003d\"panel_content\"\u003eParticipants of the Luck Competition choose a non-negative integer no more than 100 in their mind. After choosing their number, let $K$ be the average of all numbers, and $M$ be the result of $K\\times \\frac{2}{3}$. Then the lucky person is the one who choose the highest number no more than $M$. If there are several such people, the lucky person is chosen randomly.\u003cbr\u003e\u003cbr\u003eIf you are given a chance to know how many people are participating the competition and what their numbers are, calculate the highest number with the highest probability to win assuming that you\u0027re joining the competition.\u003cbr\u003e\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"There are several test cases and the first line contains the number of test cases $T(T\\leq10)$.\u003cbr\u003e\u003cbr\u003eEach test case begins with an integer $N(1\u0026lt;N\\leq100)$, denoting the number of participants. And next line contains $N-1$ numbers representing the numbers chosen by other participants.\u003cbr\u003e\u003cbr\u003e"}},{"title":"Output","value":{"format":"HTML","content":"For each test case, output an integer which you have chosen and the probability of winning (round to two digits after the decimal point), seperated by space.\u003cbr\u003e\u003cbr\u003e"}},{"title":"Sample","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\n4\r\n1 2 3\r\n4\r\n1 1 2\r\n4\r\n20 30 40\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e1 0.50\r\n0 1.00\r\n18 1.00\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}