{"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":"众所周知,ACM组的xxx是个很懒的人,这一天的训练赛他居然让网安组的堆堆帮忙抓题。\n可是因为堆堆小菜鸡太垃圾了,只会签到,于是相中了一堆签到题,但是xxx对堆堆选中的题每次都不满意,堆堆没有办法,在xxx宣布堆堆可以停下来之前只能不停地选题。\n已知堆堆每次选的是两种签到题,每种数量不一,A类签到题 a 道和B类签到题 b 道,请输出堆堆每次选的题目总数\n"}},{"title":"Input","value":{"format":"HTML","content":"每一行包含两个整数 a 和 b,处理到文件结束"}},{"title":"Output","value":{"format":"HTML","content":"对于每一行,将 a + b 输出"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e\n1 1\n2 4\n\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e\n2\n6\n\u003c/pre\u003e"}}]}