{"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":"\u003cdiv\u003e \n \u003cdiv\u003e\n 一个盒子里有一个红球和k个黑球.嘻嘻和哈哈不放回地交替从盒子里拿球,\n \u003cspan\u003e直到红球被拿出\u003c/span\u003e,并且拿到红球的获胜.哈哈是一个长者,\n \u003cspan\u003e为了给嘻嘻一点人生的经验\u003c/span\u003e,他让嘻嘻决定谁先拿.嘻嘻预感到自己先走的话可能会更好,因为他可能第一次就获胜.但如果他第一次拿到的是黑球,\n \u003cspan\u003e那哈哈获胜的概率就会变大\u003c/span\u003e,因为一个黑球被去除掉了.嘻嘻应该让谁先拿才能使自己获胜的概率最大?\n \u003c/div\u003e \n \u003cdiv\u003e\n \u0026nbsp;\n \u003c/div\u003e \n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cdiv\u003e \n \u003cspan\u003e多组输入数据\u003c/span\u003e(\n \u003cspan\u003e数据总数小于50\u003c/span\u003e)\n\u003c/div\u003e \n\u003cdiv\u003e \n \u003cspan\u003e每组数据含有一个整数k\u003c/span\u003e\u0026nbsp;(\n \u003cspan\u003e1≤k≤10\u003c/span\u003e^5)\u0026nbsp;\n\u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cdiv\u003e \n \u003cspan\u003e对于每组数据\u003c/span\u003e,\n \u003cspan\u003e输出\u003c/span\u003e:\n\u003c/div\u003e \n\u003cdiv\u003e\n 1,\n \u003cspan\u003e如果先拿的有优势\u003c/span\u003e\n\u003c/div\u003e \n\u003cdiv\u003e\n 2,\n \u003cspan\u003e如果后拿的有优势\u003c/span\u003e\n\u003c/div\u003e \n\u003cdiv\u003e\n 0,\n \u003cspan\u003e如果不管谁先谁后\u003c/span\u003e,\n \u003cspan\u003e概率都是一样的\u003c/span\u003e\n\u003c/div\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e\r\n1\r\n2\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e\r\n0\r\n1\u003c/pre\u003e"}}]}