diff --git a/solutions/result-panic/panic.md b/solutions/result-panic/panic.md
index 175dd55..a25f86d 100644
--- a/solutions/result-panic/panic.md
+++ b/solutions/result-panic/panic.md
@@ -25,18 +25,20 @@ fn main() {
 ```rust
 // MAKE the code work by fixing all panics
 fn main() {
-    assert_eq!("abc".as_bytes(), [96, 97, 98]);
+    assert_eq!("abc".as_bytes(), [97, 98, 99]);
 
     let v = vec![1, 2, 3];
-    let ele = v[3];
+    let ele = v[2];
     // unwrap may panic when get return a None
-    let ele = v.get(3).unwrap();
+    let ele = v.get(2).unwrap();
 
     // Sometimes, the compiler is unable to find the overflow errors for you in compile time ,so a panic will occur
      let v = production_rate_per_hour(2);
 
      // because of the same reason as above, we have to wrap it in a function to make the panic occur
-     divide(15, 0)
+     divide(15, 1);
+
+     println!("Success!")
 }
 
 fn divide(x:u8, y:u8) {
@@ -44,7 +46,7 @@ fn divide(x:u8, y:u8) {
 }
 
 fn production_rate_per_hour(speed: u8) -> f64 {
-    let cph: u8 = 221;
+    let cph: u8 = 21;
     match speed {
         1..=4 => (speed * cph) as f64,
         5..=8 => (speed * cph) as f64 * 0.9,
@@ -56,4 +58,4 @@ fn production_rate_per_hour(speed: u8) -> f64 {
 pub fn working_items_per_minute(speed: u8) -> u32 {
     (production_rate_per_hour(speed) / 60 as f64) as u32
 }
-```
\ No newline at end of file
+```