{"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":"小新特别喜欢对着风间的耳朵吹气,但风间特别讨厌(享受)小新的这种行为。对此,风间找到了吉永老师当裁判,要跟小新比赛,小新赢了才能对着风间的耳朵吹气。吉永老师每次会给出两个自然数a和b,只要风间或者小新能正确回答出二者之和,那么他就获胜。你能帮助数学不好的小新顺利对着风间的耳朵吹气吗!\n\u003cbr\u003e\n\n\n "}},{"title":"Input","value":{"format":"MD","content":"输入数据的第一行为一个整数T(1≤T≤20),表示比赛的次数,紧接着的T行数据,每行包含由空格隔开的两个整数a和b,每组数据占一行。注意了,a和b可能非常大,貌似long long都存不下,但a和b的位数均不会超过1000。\n\u003cbr\u003e"}},{"title":"Output","value":{"format":"MD","content":"对于每组数据,你需要输出两行,第一行显示\"Case #:\",第二行为一个等式\"a + b \u003d Sum\",这里的Sum就是指比赛的正确答案。请在每两组输出数据间输出一个空行,请注意输出中的空格与换行!!!\n\u003cbr\u003e"}},{"title":"Sample Input","value":{"format":"MD","content":"\u003cpre\u003e3\n1 2\n112233445566778899 998877665544332211\n0 0\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"MD","content":"\u003cpre\u003eCase 1:\n1 + 2 \u003d 3\n\nCase 2:\n112233445566778899 + 998877665544332211 \u003d 1111111111111111110\n\nCase 3:\n0 + 0 \u003d 0\u003c/pre\u003e"}}]}