minor improvements

src/main.rs

@@ -6,7 +6,6 @@ use parse::parse;
 use std::env;
 
 
-
 fn main() {
     let mut args = vec![];
     for argument in env::args() {
@@ -15,4 +14,6 @@ fn main() {
 
     let elements = parse(&args[1]);
     println!("{:#?}", elements);
+    println!("{}", elements.len());
+    // TODO: determine element group of each element
 }