{"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\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 type\u003d\"text/javascript\" async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS_HTML-full\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"给出一个4*4的棋盘,每个单元只可能是“.”,“o”或者“x”中的一种,其中“.”代表当前单元没有棋子,“o”代表当前单元有乙的棋子,“x”代表当前单元有甲的棋子。\u003cbr\u003e\u003cbr\u003e现在需要你判断,如果下一步轮到甲下棋,那么他能否下一步棋而获得胜利?(胜利的规则是棋盘上有自己方的三个子在一条线上,此条线可以是水平竖直或者斜45度的)。"}},{"title":"Input","value":{"format":"HTML","content":"输入有4行,每行4个字符,代表当前单元的情况。"}},{"title":"Output","value":{"format":"HTML","content":"如果甲可以再下一步就获得胜利输出“YES”,否则输出“NO”。"}},{"title":"Example","value":{"format":"HTML","content":"\u003cpre\u003e样例输入①\nxx..\n.oo.\nx...\noox.\n样例输出①\nYES\u003cbr\u003e\n样例输入②\nx.ox\nox..\nx.o.\noo.x\n样例输出②\nNO\n\u003c/pre\u003e"}},{"title":"Note","value":{"format":"HTML","content":"样例①中下在以左下角为坐标原点的直角坐标系的(3,4)即可。\u003cbr\u003e\n样例②中甲无法在仅下一步的情况下获得胜利。\n"}}]}