{"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\u003cp\u003eGipsy最近饱受微积分的折磨,他已经忘了大一学的内容了,你能帮帮他吗?\n\u003c/p\u003e\n已知\u003cimg src\u003d\"http://img0.ph.126.net/RmYTQZLwQtwGn7dBofIwDg\u003d\u003d/1036390864267750704.png\" width\u003d\"100\" height\u003d\"40\"\u003e,\u003cimg src\u003d\"http://img0.ph.126.net/KXHWzt9KMkG8lulQR9UjtQ\u003d\u003d/6632671953164551773.png\" width\u003d\"100\" height\u003d\"40\"\u003e,求\n\u003cimg src\u003d\"http://img2.ph.126.net/2jfP1_PivHgwwwcV6pCF0A\u003d\u003d/6632671953164551775.png\" width\u003d\"70\" height\u003d\"40\"\u003e 的值。\n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cp\u003e注意此题需要多组数据读入,每行包括两个整数 A 和 B 。\u003c/p\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cp\u003e对于每组数据,分别输出 \u003cimg src\u003d\"http://img2.ph.126.net/2jfP1_PivHgwwwcV6pCF0A\u003d\u003d/6632671953164551775.png\" width\u003d\"70\" height\u003d\"40\"\u003e 的值在独立的一行。\u003c/p\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"1 2\u003cbr\u003e\n2 3\u003cbr\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"3\u003cbr\u003e\n5\u003cbr\u003e"}},{"title":"Attention","value":{"format":"HTML","content":"此题输入数据的行数是不确定的。"}},{"title":"Hint","value":{"format":"HTML","content":"EOF"}}]}