{"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":"xza厌倦了A+B Problem,他更想把一个数拆成A和B,但是似乎有无数种拆法\u003cbr/\u003e\u003cbr/\u003e\n于是他想到给你一个偶数,你需要把他拆成拆成两个不同素数的和,但是这样依然会有很多答案,因此,你只需要一共有几种拆法就可以啦~"}},{"title":"Input","value":{"format":"HTML","content":"输入包含一些正的偶数,其值不会超过10000,个数不会超过500,若遇0,则结束。"}},{"title":"Output","value":{"format":"HTML","content":"对应每个偶数,输出其拆成不同素数的个数,每个结果占一行。"}},{"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"}}]}