diff --git a/src/main/java/com/ctci/arraysandstrings/CheckPermutation.java b/src/main/java/com/ctci/arraysandstrings/CheckPermutation.java
index dbf7c795..08a605c3 100644
--- a/src/main/java/com/ctci/arraysandstrings/CheckPermutation.java
+++ b/src/main/java/com/ctci/arraysandstrings/CheckPermutation.java
@@ -56,12 +56,26 @@ private static boolean isOnePermutationOfOtherGivenThatStringsContainOnlyAscii(S
     }
 
     public static void main(String[] args) {
-        System.out.println(isOnePermutationOfOther("ram", "mar"));
-        System.out.println(isOnePermutationOfOther("rama", "mar"));
-        System.out.println(isOnePermutationOfOther("rama", "marA"));
-        System.out.println("-------");
-        System.out.println(isOnePermutationOfOtherGivenThatStringsContainOnlyAscii("ram", "mar"));
-        System.out.println(isOnePermutationOfOtherGivenThatStringsContainOnlyAscii("rama", "mar"));
-        System.out.println(isOnePermutationOfOtherGivenThatStringsContainOnlyAscii("rama", "marA"));
+        System.out.println(isPermutationOfPalindrome("tactc oapapa"));
+        assertTrue(isPermutationOfPalindrome("tactc oapapa"));
+        System.out.println(isPermutationOfPalindrome("maam"));
+        assertTrue(isPermutationOfPalindrome("maam"));
+        System.out.println(isPermutationOfPalindrome("maa m"));
+        assertTrue(isPermutationOfPalindrome("maa m"));
+        System.out.println(isPermutationOfPalindrome("rammmar"));
+        assertTrue(isPermutationOfPalindrome("rammmar"));
+        System.out.println(isPermutationOfPalindrome("rammmara"));
+        assertFalse(isPermutationOfPalindrome("rammmara"));
+        System.out.println("---------");
+        System.out.println(isPermutationOfPalindromeViaBits("tactc oapapa"));
+        assertTrue(isPermutationOfPalindromeViaBits("tactc oapapa"));
+        System.out.println(isPermutationOfPalindromeViaBits("maam"));
+        assertTrue(isPermutationOfPalindromeViaBits("maam"));
+        System.out.println(isPermutationOfPalindromeViaBits("maa m"));
+        assertTrue(isPermutationOfPalindromeViaBits("maa m"));
+        System.out.println(isPermutationOfPalindromeViaBits("rammmar"));
+        assertTrue(isPermutationOfPalindromeViaBits("rammmar"));
+        System.out.println(isPermutationOfPalindromeViaBits("rammmara"));
+        assertFalse(isPermutationOfPalindromeViaBits("rammmara"));
     }
 }