rustlings/exercises/01_variables/variables4.rs

// variables4.rs
//
// 執行 `rustlings hint variables4` 或使用 `hint` watch 子命令來獲取提示。

// I AM NOT DONE

fn main() {
    let x = 3;
    println!("Number {}", x);
    x = 5; // don't change this line
    println!("Number {}", x);
}