{"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":"MD","content":"又是美丽的 $a+b$。"}},{"title":"Input","value":{"format":"MD","content":"输入有多组。\n\n每组有两个正整数 $a, b$,用空格隔开,每组数据一行。\n\n当数据为 $a\u003d0,b\u003d0$ 时,表示输入结束,并且本组数据不需要处理。"}},{"title":"Output","value":{"format":"MD","content":"对于每组数据 $a,b$,分别在一行输出 $a+b$。"}},{"title":"Sample Input","value":{"format":"MD","content":"\u003cpre\u003e13 5\n25 15\n0 0\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"MD","content":"\u003cpre\u003e18\n40\u003c/pre\u003e"}}]}