diff --git a/slice/Cargo.toml b/slice/Cargo.toml
new file mode 100644
index 0000000..7216848
--- /dev/null
+++ b/slice/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "slice"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/slice/src/main.rs b/slice/src/main.rs
new file mode 100644
index 0000000..38597ac
--- /dev/null
+++ b/slice/src/main.rs
@@ -0,0 +1,13 @@
+fn first_word(s: &String) -> usize {
+    let b = s.as_bytes();
+    for (i, &val) in b.iter().enumerate() {
+        if val == b' ' {
+            return i;
+        }
+    }
+    s.len()
+}
+fn main() {
+    println!("{}", first_word(&String::from("sadf sdfsd fesf")));
+
+}