NiaP_Lesson_13feat: implements initial loop structure in findPermutationDifference method

Author: nia-source

lesson_13/maps_java/maps_app/src/main/java/com/codedifferently/lesson13/Lesson13.java

@@ -8,5 +8,7 @@ public class Lesson13 {
    */
   public int findPermutationDifference(String s, String t) {
     return 0;
+
+        for (int i = 0; i < s.length(); i++) {
   }
 }