{"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\n给你 n( 5≤n≤50 )根火柴棒,求能拼成 A−B\u003dC 的式子有多少种,种数模 m(3≤m≤2×10^9) 。其中每个数字拼法如下:\n \u003cbr\u003e\n \u003ccenter\u003e\n \u003cimg style\u003d\"max-width:100%;\" src\u003d\"CDN_BASE_URL/5bdc7280f749182f8094769c645b42e3?v\u003d1630099388\"\u003e\n \u003c/center\u003e \n \u003cbr\u003e如下是一个合法的式子:\n \u003cbr\u003e\n \u003ccenter\u003e\n \u003cimg style\u003d\"max-width:100%;\" src\u003d\"CDN_BASE_URL/ffc014fa6248888d2c80b6a2e1bd5cd0?v\u003d1630099388\"\u003e\n \u003c/center\u003e \n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"输入包含多个测试用例。 输入的第一行是单个整数T,这是测试用例的数量。 然后t(1≤t≤30)测试用例遵循。\n\u003cbr\u003e\n\u003cbr\u003e每个测试用例包含一行,两个整数n和m。"}},{"title":"Output","value":{"format":"HTML","content":"对于每个测试用例,您应该输出答案。\n\u003cbr\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e4\n12 1000000007\n17 1000000007\n20 1000000007\n147 1000000007\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003eCase #1: 1\nCase #2: 5\nCase #3: 38\nCase #4: 815630825\u003c/pre\u003e"}}]}