1st step

Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "guessing_game"
+version = "0.1.0"

src/main.rs

@@ -1,3 +1,15 @@
+
+
 fn main() {
-    println!("Hello, world!");
+    println!("Guess the number!");
+
+    println!("Please input your guess.");
+
+    let mut guess = String::new();
+
+    std::io::stdin()
+        .read_line(&mut guess)
+        .expect("Failed to read line");
+
+    println!("You guessed: {}", guess);
 }