diff --git a/main.cpp b/main.cpp
index cc11b42..6a36f13 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,27 +1,23 @@
 #include <iostream>
 #include <cmath>
 
-using std::cin;
-using std::cout;
-using std::endl;
-
 int main()
 {
    cout<<"Hi, please enter two whole numbers: ";
 
    int x,y;
 
-   cin >> x >> y;
-   cout << "Addition: " << x + y << endl;
-   cout << "Subtraction: " << x - y << endl;
-   cout << "Multiplication: " <<x * y << endl;
+   std::cin >> x >> y;
+   std::cout << "Addition: " << x + y << std::endl;
+   std::cout << "Subtraction: " << x - y << std::endl;
+   std::cout << "Multiplication: " <<x * y << std::endl;
    if (y != 0)
-      cout << "Division: " << x / y << endl;
+      std::cout << "Division: " << x / y << std::endl;
    else
-      cout << "Dividing by zero is not a number." << endl;
-   cout << "Remainder: " <<x % y << endl;
-   cout << "Square Root: " << sqrt(x) << endl;
-   cout << "Square: " << pow(x, y) << endl;
+      std::cout << "Dividing by zero is not a number." << std::endl;
+   std::cout << "Remainder: " <<x % y << std::endl;
+   std::cout << "Square Root: " << sqrt(x) << std::endl;
+   std::cout << "Square: " << pow(x, y) << std::endl;
 
    return 0;
 }