{"trustable":false,"sections":[{"title":"","value":{"format":"HTML","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003cspan lang\u003d\"en-us\"\u003e\u003cp\u003eliympanda, one of Ikki\u0026rsquo;s friend, likes playing games with Ikki. Today after minesweeping with Ikki and winning so many times, he is tired of such easy games and wants to play another game with Ikki.\u003c/p\u003e\u003cp\u003eliympanda has a magic circle and he puts it on a plane, there are \u003ci\u003en\u003c/i\u003e points on its boundary in circular border: 0, 1, 2, \u0026hellip;, \u003ci\u003en\u003c/i\u003e \u0026minus; 1. Evil panda claims that he is connecting m pairs of points. To connect two points, liympanda either places the link entirely inside the circle or entirely outside the circle. Now liympanda tells Ikki no two links touch inside/outside the circle, except on the boundary. He wants Ikki to figure out whether this is possible\u0026hellip;\u003c/p\u003e\u003cp\u003eDespaired at the minesweeping game just played, Ikki is totally at a loss, so he decides to write a program to help him.\u003c/p\u003e\u003c/span\u003e\u003c/div\u003e"}},{"title":"Input","value":{"format":"HTML","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003cspan lang\u003d\"en-us\"\u003e\u003cp\u003eThe input contains exactly one test case.\u003c/p\u003e\u003cp\u003eIn the test case there will be a line consisting of of two integers: \u003ci\u003en\u003c/i\u003e and \u003ci\u003em\u003c/i\u003e (\u003ci\u003en\u003c/i\u003e \u0026le; 1,000, \u003ci\u003em\u003c/i\u003e \u0026le; 500). The following \u003ci\u003em\u003c/i\u003e lines each contain two integers \u003ci\u003ea\u003csub\u003ei\u003c/sub\u003e\u003c/i\u003e and \u003ci\u003eb\u003csub\u003ei\u003c/sub\u003e\u003c/i\u003e, which denote the endpoints of the \u003ci\u003ei\u003c/i\u003eth wire. Every point will have at most one link.\u003c/p\u003e\u003c/span\u003e\u003c/div\u003e"}},{"title":"Output","value":{"format":"HTML","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003cspan lang\u003d\"en-us\"\u003e\u003cp\u003eOutput a line, either \u0026ldquo;\u003ccode\u003epanda is telling the truth...\u003c/code\u003e\u0026rdquo; or \u0026ldquo;\u003ccode\u003ethe evil panda is lying again\u003c/code\u003e\u0026rdquo;.\u003c/div\u003e"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003e4 2\r\n0 1\r\n3 2\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre class\u003d\"sio\"\u003epanda is telling the truth...\u003c/pre\u003e"}}]}