{"trustable":false,"prependHtml":"\u003cstyle type\u003d\u0027text/css\u0027\u003e\n .input, .output {\n border: 1px solid #888888;\n }\n .output {\n margin-bottom: 1em;\n position: relative;\n top: -1px;\n }\n .output pre, .input pre {\n background-color: #EFEFEF;\n line-height: 1.25em;\n margin: 0;\n padding: 0.25em;\n }\n \u003c/style\u003e\n \u003clink rel\u003d\"stylesheet\" href\u003d\"//codeforces.org/s/96598/css/problem-statement.css\" type\u003d\"text/css\" /\u003e\n\u003cscript\u003e\n window.katexOptions \u003d {\n delimiters: [\n {left: \u0027$$$$$$\u0027, right: \u0027$$$$$$\u0027, display: true},\n {left: \u0027$$$\u0027, right: \u0027$$$\u0027, display: false},\n {left: \u0027$$\u0027, right: \u0027$$\u0027, display: true},\n {left: \u0027$\u0027, right: \u0027$\u0027, display: false}\n ]\n };\n\u003c/script\u003e\n","sections":[{"title":"","value":{"format":"HTML","content":"Ayush 拿着一棵树打算和 Ashish 玩游戏,这颗树中有一个必胜节点x,每个人可以在一轮中选择一个叶子节点删除,最终删除掉x节点的人获得游戏胜利。Ayush 先手,Ashish 后手。问谁会获得游戏的胜利。"}},{"title":"Input","value":{"format":"HTML","content":"T组测试数据\n\u003cbr\u003e\n第一行包括两个正整数n,x (1≤n≤1000,1≤x≤n)---有n个节点,x为必胜节点\n\u003cbr\u003e\n接下来n-1行包含两个正整数u,v -- 节点u和v有一条边"}},{"title":"Output","value":{"format":"HTML","content":"对于每组测试数据,先手获胜输出\"Ayush\",后者获胜输出\"Ashish\"."}},{"title":"Examples","value":{"format":"HTML","content":"\u003cdiv class\u003d\"sample-test\"\u003e \n \u003cdiv class\u003d\"input\"\u003e \n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e \n \u003cpre\u003e1\n3 1\n2 1\n3 1\n\u003c/pre\u003e\n \u003c/div\u003e \n \u003cdiv class\u003d\"output\"\u003e \n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e \n \u003cpre\u003eAshish\n\u003c/pre\u003e\n \u003c/div\u003e \n \u003cdiv class\u003d\"input\"\u003e \n \u003cdiv class\u003d\"title\"\u003e\n Input\n \u003c/div\u003e \n \u003cpre\u003e1\n3 2\n1 2\n1 3\n\u003c/pre\u003e\n \u003c/div\u003e \n \u003cdiv class\u003d\"output\"\u003e \n \u003cdiv class\u003d\"title\"\u003e\n Output\n \u003c/div\u003e \n \u003cpre\u003eAyush\n\u003c/pre\u003e\n \u003c/div\u003e\n\u003c/div\u003e"}},{"title":"Note","value":{"format":"HTML","content":"在第一个测试样例中,Ayush只能删除节点 2 或者 3,在删除2或3节点之后 1 成为叶节点,Ashish可以将必胜节点删除。\n\u003cbr\u003e\n在第二个测试样例中,Ayush可以删除必胜节点 2 在第一步。"}}]}