{"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":"\u003cp\u003e \u003cspan\u003e\u003cspan\u003e\u003cspan\u003e你的任务是求许多数的和。\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/p\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cp\u003e \u003cspan\u003e\u003cspan\u003e\u003cspan\u003e第一行需要输入一个整数N,\u003cspan\u003e接下来会有N行。\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u003c/span\u003e\u0026nbsp;每一行开始输入一个整数M,然后会有M个数在同一行。\u003cbr\u003e \u0026nbsp;\u003c/p\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cp\u003e 对于每组输入,要求在一行输出它们的和。并且你要保证每组输出之间有一空行。\u003cbr\u003e \u0026nbsp;\u003c/p\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e\n3\n4 1 2 3 4\n5 1 2 3 4 5\n3 1 2 3\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e\n10\n\n15\n\n6\u003c/pre\u003e"}}]}