diff --git a/GitHubTestProject/Program.cs b/GitHubTestProject/Program.cs
index b910941..4527c37 100644
--- a/GitHubTestProject/Program.cs
+++ b/GitHubTestProject/Program.cs
@@ -20,8 +20,10 @@ static void Main(string[] args)
         /// <returns></returns>
         public static bool IsPrime(int n)
         {
-            // TODO: Complete fhe funtion
-            return n % 2 != 0;
+            for (int i = 2; i <= Math.Sqrt(n); i++)
+                if (n % i == 0)
+                    return false;
+            return true;
         }
 
         /// <summary>
@@ -30,7 +32,24 @@ public static bool IsPrime(int n)
         /// <param name="a">An integer array</param>
         public static void Sort(int[] a)
         {
-            // TODO: Complete fhe funtion
+            int n = a.Length;
+            int min, minI;
+            for (int i = 0; i < n; i++)
+            {
+                minI = i;
+                min = a[i];
+                for (int j = i; j < n; j++)
+                {
+                    if (a[j] < min)
+                    {
+                        minI = j;
+                        min = a[j];
+                    }
+                }
+                a[minI] = a[i];
+                a[i] = min;
+            }
+            
         }
     }
 }