diff --git a/school/intro-crypto/uebung/05/p/src/main.rs b/school/intro-crypto/uebung/05/p/src/main.rs
index ed4a4ec..26c510b 100644
--- a/school/intro-crypto/uebung/05/p/src/main.rs
+++ b/school/intro-crypto/uebung/05/p/src/main.rs
@@ -13,16 +13,16 @@ fn p<T: Copy + Default>(i: [T; 32]) -> [T; 32] {
 
 fn main() {
     let i: [u8; 32] = [
-        1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0,
-        0, 0,
+        1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1,
+        0, 1,
     ];
     p(i).iter().for_each(|i| print!("{}", i));
     println!();
 
     let p = &[
-        true, false, false, false, false, false, true, false, false, true, false, true, true,
-        false, false, true, true, true, false, true, false, true, true, true, false, false, true,
-        true, true, false, true, true,
+        true, false, false, false, false, false, true, false, false, true, true, true, true, false,
+        false, true, true, true, false, true, false, true, true, true, true, false, true, true,
+        true, false, true, true,
     ];
     let l0 = &[
         true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
@@ -36,4 +36,14 @@ fn main() {
         .map(|x| if x { '1' } else { '0' })
         .for_each(|x| print!("{}", x));
     println!();
+
+    let lo = b"11111111111111111111111111111101";
+    let ln = b"11111111111111111111111111111111";
+    let cl = lo.iter().zip(ln.iter()).filter(|(a, b)| a != b).count();
+    println!("cl = {}", cl);
+
+    let ro = b"01111101101001100010100011000100";
+    let rn = b"01111101100001100010100001000100";
+    let cr = ro.iter().zip(rn.iter()).filter(|(a, b)| a != b).count();
+    println!("cr = {}", cr);
 }