Commit 1f5a164

@@ -45,12 +45,12 @@ public class MovingRobot extends Robot {
     return r1.getX() == r2.getX() && r1.getY() == r2.getY();
   }
 
-  public static String printGrid(Robot x, Robot y) {
+  public static String printGrid(Robot r1, Robot r2) {
     String grid = "";
     for (int row = 0; row < 10; row++) {
       for (int column = 0; column < 10; column++) {
-        if (x.getX() == row && x.getY() == column) grid += "|X";
-        else if (y.getX() == row && y.getY() == column) grid += "|Y";
+        if (r1.getX() == row && r1.getY() == column) grid += "|1";
+        else if (r2.getX() == row && r2.getY() == column) grid += "|2";
         else grid += "| ";
       }
       grid += String.format("|%s", System.lineSeparator());
@@ -151,6 +151,8 @@ public class MovingRobot extends Robot {
       r2.move();
 
       clear();
+      System.out.println(
+          String.format("R1 (%d, %d), R2: (%d, %d)", r1.getX(), r1.getY(), r2.getX(), r2.getY()));
       System.out.println(MovingRobot.printGrid(r1, r2));
       sleep(1000);
     }

@@ -185,7 +185,7 @@ public class MovingRobotTest extends TestCase {
     Robot r2 = new MovingRobot(9, 9);
 
     String expected =
-        "|X| | | | | | | | | |\n"
+        "|1| | | | | | | | | |\n"
             + "| | | | | | | | | | |\n"
             + "| | | | | | | | | | |\n"
             + "| | | | | | | | | | |\n"
@@ -194,7 +194,7 @@ public class MovingRobotTest extends TestCase {
             + "| | | | | | | | | | |\n"
             + "| | | | | | | | | | |\n"
             + "| | | | | | | | | | |\n"
-            + "| | | | | | | | | |Y|\n";
+            + "| | | | | | | | | |2|\n";
     String result = MovingRobot.printGrid(r1, r2);
 
     System.out.println(expected);