{"trustable":false,"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":"\u003cscript type\u003d\u0027text/x-mathjax-config\u0027\u003eMathJax.Hub.Config({tex2jax: { inlineMath: [[\u0027$\u0027,\u0027$\u0027]] } }); \u003c/script\u003e\n\u003cscript type\u003d\u0027text/javascript\u0027 src\u003d\u0027https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\u0027\u003e\u003c/script\u003e\n\u003cscript type\u003d\u0027text/javascript\u0027\u003esetTimeout(function(){MathJax.Hub.Queue([\u0027Typeset\u0027, MathJax.Hub, \u0027left_view\u0027]);}, 2000);\u003c/script\u003e\n\u003cdiv class\u003d\"panel_content\"\u003e\nartist讲课讲得不好,比赛题又出得对于同学们来说太难了,她感到非常愧疚!于是她想送给你一只美味的icecream,以示歉意,并让同学们开心一点。\n \u003cbr\u003e这只icecream的价格是一个偶数。\n \u003cbr\u003eartist有一些纸币,面额都是质数,且各自只有一张。值得庆幸的是,这些纸币的面额囊括了icecream价格以内的所有质数。由于artist把面额相近的纸币叠放在了一起,在众多组合中,她选择了面额最相近的两张纸币来购买这只icecream。\n \u003cbr\u003e 你收到了icecream,经验告诉了你这个icecream的价格。你在思考artist使用了她哪两张纸币,来购买这只icecream。\n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"多组输入,以EOF结束。输入中是一些偶整数M(5\u0026lt;M\u0026lt;\u003d10000). \n\u003cbr\u003e"}},{"title":"Output","value":{"format":"HTML","content":"对于每个偶数,输出两个彼此最接近的素数,其和等于该偶数. \n\u003cbr\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e20 30 40\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e7 13\n13 17\n17 23\u003c/pre\u003e"}}]}