{"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":" 武大狼说大家每次题都有多,每次大家都没ak,然后就在这次进阶赛检查大家是否补题,出了几道水题(注意:请大家千万不要作弊!!!粘代码!!代码会进行查重)\n 读入两个小于10000的正整数A和B,计算A+B。需要注意的是:如果A和B的末尾K(不超过8)位数字相同,请直接输出-1。 "}},{"title":"Input","value":{"format":"MD","content":"测试输入包含若干测试用例,每个测试用例占一行,格式为\"A B K\",相邻两数字有一个空格间隔。当A和B同时为0时输入结束,相应的结果不要输出。 "}},{"title":"Output","value":{"format":"MD","content":"对每个测试用例输出1行,即A+B的值或者是-1。 "}},{"title":"Sample Input","value":{"format":"MD","content":"1 2 1\n11 21 1\n108 8 2\n36 64 3\n0 0 1"}},{"title":"Sample Output","value":{"format":"MD","content":"3\n-1\n-1\n100"}},{"title":"","value":{"format":"MD","content":""}}]}