{"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":"最近有个叫DedSec的黑客组织四处搞事,为此神烦布鲁姆公司找了个叫prime_8黑客组织打算教育一下他们。\u003cbr\u003e\n在被prime_8无情羞辱为脚本小子后,二狗子怒了,他将告诉这个龙套,惹谁也别惹主角。\u003cbr\u003e\n\u003cimg src\u003d\"https://timgsa.baidu.com/timg?image\u0026quality\u003d80\u0026size\u003db9999_10000\u0026sec\u003d1486400906206\u0026di\u003d80277f3689530a79dadbfe10cb9a53b5\u0026imgtype\u003d0\u0026src\u003dhttp%3A%2F%2Fimgsrc.baidu.com%2Fforum%2Fw%3D580%2Fsign%3Df1edda586e09c93d07f20effaf3cf8bb%2F74fd0055b319ebc48fbfe6cf8b26cffc1c1716e8.jpg\"\u003e\u003cbr\u003e\n二狗子从prime_8的服务器中获取了若干成员的数字代号,巧的是,这些代号都是偶数。\u003cbr\u003e\n二狗心想:prime是素数,8是偶数,让我看看每个偶数拆成两个不同的素数有几种拆法,我就用几种方法让你们在旧金山混不下去。\u003cbr\u003e\n\u003cbr\u003e\n然而现在二狗子出门在外,用的是触屏手机还没带外接键盘,维护正义的任务就交给你了!"}},{"title":"Input","value":{"format":"HTML","content":"输入有若干偶数,范围为[2,10000),不超过500个。\u003cbr\u003e\n0为输入结束标志。\u003cbr\u003e"}},{"title":"Output","value":{"format":"HTML","content":"对于每个偶数,输出其可拆分的方法数。"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e30\n26\n0\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e3\n2\u003c/pre\u003e"}},{"title":"Hint","value":{"format":"HTML","content":"30 \u003d 7 + 23 \u003d 11 + 19 \u003d 13 + 17\u003cbr\u003e\n26 \u003d 3 + 23 \u003d 7 + 19"}}]}