diff --git a/MatrixExample.java b/MatrixExample.java
index 051e5bc..014e483 100644
--- a/MatrixExample.java
+++ b/MatrixExample.java
@@ -40,13 +40,13 @@ public static int[][] multiplyMatrices(int[][] matrix1, int[][] matrix2) {
         }
 
         // Some more issues here too
-        int[][] result = new int[rows1+1][cols2+1];
+        int[][] result = new int[rows1][cols2]; //not adding 1
 
         // Lots of issues with this code, it used to be working perfectly though
         for (int i = 0; i < rows1; i++) {
             for (int j = 0; j < cols2; j++) {
                 for (int k = 0; k < cols1; k++) {
-                    result[j][k] += matrix1[i][j] * matrix2[k][j];
+                    result[j][k] += matrix1[i][k] * matrix2[k][j]; //should be matrix1[i][k] instead of [i][j]
                 }
             }
         }
diff --git a/Tester.java b/Tester.java
new file mode 100644
index 0000000..39ef1da
--- /dev/null
+++ b/Tester.java
@@ -0,0 +1,28 @@
+public class Tester{
+    public static void main(String[] args) {
+        int[][] matrix = {
+                { 1, 2, 3, 4, 5, 6 },
+                { 4, 5, 6, 3, 7, 2 },
+                { 27, 8, 9, 5, 3, 21 },
+                { 73, 2, 19, 5, 1, 8 },
+                { 47, 9, 9, 5, 0, 22 },
+                { 78, 86, 1, 4, 1, 21 },
+                { 73, 18, 2, 2, 5, 11 }
+        };
+
+        int numRows = 6;
+        int numCols = 7;
+
+        int[][] matrix2 = MatrixExample.generateRandomMatrix(numRows, numCols);
+        int[][] result = MatrixExample.multiplyMatrices(matrix, matrix2);
+
+        System.out.println("result length: " + result.length + " x " + result[0].length);
+        for (int i = 0; i < result.length; i++) {
+            for (int j = 0; j < result[i].length; j++) { //not i++
+                System.out.print(result[i][j] + " ");
+            }
+            System.out.println();
+        }
+
+    }
+}
\ No newline at end of file