diff --git a/csc-java/week_02/booleans/Booleans.java b/csc-java/week_02/booleans/Booleans.java
index 10bc69e..a61bdbd 100644
--- a/csc-java/week_02/booleans/Booleans.java
+++ b/csc-java/week_02/booleans/Booleans.java
@@ -2,6 +2,6 @@
 
 public class Booleans {
     public static boolean booleanExpression(boolean a, boolean b, boolean c, boolean d) {
-        return (a & b & !c & !d) | (a & !b & c & !d) | (a & !b & !c & d) | (!a & b & c & !d) | (!a & b & !c & d) | (!a & !b & c & d);
+        return (a ^ b) & (d ^ c) | (a ^ c) & (b ^ d);
     }
-}
\ No newline at end of file
+}