diff --git a/src/main.rs b/src/main.rs
index a27e2b3..48fdae4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,17 @@
 use std::fs;
 use std::io;
 
+struct Position {
+    x: u32,
+    y: u32,
+}
+
+struct Robot {
+    id: u32,
+    o: Orientation,
+    p: Position,
+}
+
 enum Orientation {
     N,
     E,
@@ -68,5 +79,4 @@ mod tests {
         assert!(open_file("two_robots.txt").is_ok());
         assert!(open_file("test_unexisting_file.extension").is_err());
     }
-
 }