{"trustable":true,"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 class\u003d\"panel_content\"\u003eIn the modern time, Search engine came into the life of everybody like Google, Baidu, etc.\u003cbr\u003eWiskey also wants to bring this feature to his image retrieval system.\u003cbr\u003eEvery image have a long description, when users type some keywords to find the image, the system will match the keywords with description of image and show the image which the most keywords be matched.\u003cbr\u003eTo simplify the problem, giving you a description of image, and some keywords, you should tell me how many keywords will be match.\u003cbr\u003e\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"First line will contain one integer means how many cases will follow by.\u003cbr\u003eEach case will contain two integers N means the number of keywords and N keywords follow. (N \u0026lt;\u003d 10000)\u003cbr\u003eEach keyword will only contains characters \u0027a\u0027-\u0027z\u0027, and the length will be not longer than 50.\u003cbr\u003eThe last line is the description, and the length will be not longer than 1000000.\u003cbr\u003e"}},{"title":"Output","value":{"format":"HTML","content":"Print how many keywords are contained in the description."}},{"title":"Sample","value":{"format":"HTML","content":"\u003ctable class\u003d\u0027vjudge_sample\u0027\u003e\n\u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eInput\u003c/th\u003e\n \u003cth\u003eOutput\u003c/th\u003e\n \u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003e\u003cpre\u003e1\r\n5\r\nshe\r\nhe\r\nsay\r\nshr\r\nher\r\nyasherhs\r\n\u003c/pre\u003e\u003c/td\u003e\n \u003ctd\u003e\u003cpre\u003e3\u003c/pre\u003e\u003c/td\u003e\n \u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\n"}}]}