{"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\nBZU春季选拔赛过程中,由于选拔要求,每次比赛得有个数论的题,考虑到大家刚入门,出了个相对来说简单点的题。现给你两数字a和b,如果a和c的最大公约数是b且c不等于b,那么要求满足条件的最小的c,但是D学长觉得这个问题太简单了,决定拿出来考一考新加入集训队的同学们。那么,你能解决这个问题吗? \n \u003cbr\u003e \n\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"第一行输入一个n,表示有n组测试数据,接下来的n行,每行输入两个正整数a,b。 a,b小于100000.\n\u003cbr\u003e"}},{"title":"Output","value":{"format":"HTML","content":"输出对应的c,每组测试数据占一行。 \n\u003cbr\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e2\n6 2\n12 4\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e4\n8\u003c/pre\u003e"}},{"title":"出题人说","value":{"format":"HTML","content":"不用想的那么复杂,水题一个,该暴力的时候暴力(注意不是纯暴力),建议大家不要用库函数里的gcd,尽量手写!"}}]}