{"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":"zydsg历经千辛万苦,终于找到了传说中的数学王国,但--\n\n一个身材魁梧的士兵拦在了他面前\n\n士兵给zydsg出了一个问题:给定两个数a,b,能否找到非负整数X和整数Y,使得aX+bY\u003d1?\n\n聪明的你能否帮助zydsg进入数学王国呢?\n"}},{"title":"Input","value":{"format":"MD","content":"输入包含多组数据,每组包括两个非负整数 a,b (0\u003ca,b\u003c2^31)"}},{"title":"Output","value":{"format":"MD","content":"\n输出非负整数X 和整数Y,若有多种可能,输出X最小的\n\n如果不存在答案,输出“sorry”\n"}},{"title":"Sample Input","value":{"format":"MD","content":"\u003cpre\u003e77 51\n10 44\n34 79\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"MD","content":"\u003cpre\u003e2 -3\nsorry\n7 -3\u003c/pre\u003e"}}]}