{"trustable":true,"sections":[{"title":"","value":{"format":"HTML","content":" \n \u003cp\u003eGiven n inequalities about X, how many of them can hold at the same time at most?\u003c/p\u003e \n \u003cp\u003eThe inequalities are in the follwing forms:\u003c/p\u003e \n \u003cp\u003eX \u0026lt; C\u003c/p\u003e \n \u003cp\u003eX \u0026lt;\u003d C\u003c/p\u003e \n \u003cp\u003eX \u003d C\u003c/p\u003e \n \u003cp\u003eX \u0026gt; C\u003c/p\u003e \n \u003cp\u003eX \u0026gt;\u003d C\u003c/p\u003e \n "}},{"title":"Input","value":{"format":"HTML","content":" \n \u003cp\u003eFirst line with an integer n.\u003c/p\u003e \n \u003cp\u003eFollowing n lines, each line with an inequality.\u003c/p\u003e \n \u003cp\u003eData Limit:\u003c/p\u003e \n \u003cp\u003e1\u0026lt;\u003dN\u0026lt;\u003d50,0\u0026lt;\u003dC\u0026lt;\u003d1000\u003c/p\u003e \n "}},{"title":"Output","value":{"format":"HTML","content":" \n \u003cp\u003eOne line with an integer, denoting the answer.\u003c/p\u003e \n \u003c/div\u003e \n "}},{"title":"Sample Input","value":{"format":"HTML","content":" \n \u003cpre\u003e4\r\nX \u003d 1\r\nX \u003d 2\r\nX \u003d 3\r\nX \u0026gt; 0\u003c/pre\u003e \n "}},{"title":"Sample Output","value":{"format":"HTML","content":" \n \u003cpre\u003e2\u003c/pre\u003e \n "}}]}