You can use unwrap to get value. Panics, if result is Err

src/main.rs

@@ -6,10 +6,7 @@ fn add_10(value: Option<u32>) -> Result<u32, String> {
 }
 
 fn main() {
-    let value = add_10(Some(23));
+    let value = add_10(None);
 
-    match value {
-        Ok(v) => println!("Result was: {}", v),
-        Err(e) => println!("Operatation failed. Reason was: {}", e),
-    }
+    println!("Result is: {}", value.unwrap());
 }