[Init] Solved solutions

cs/467A.cs

@@ -0,0 +1,22 @@
+using System;
+
+namespace _467A
+{
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			int n = int.Parse(Console.ReadLine());
+			int count = 0;
+			for (int i = 0; i < n; i++)
+			{
+				int[] a = Array.ConvertAll(Console.ReadLine().Split(), int.Parse);
+				if (a[1] - a[0] > 1)
+				{
+					count++;
+				}
+			}
+			Console.WriteLine(count);
+		}
+	}
+}