diff --git a/src/graph/matrix.rs b/src/graph/matrix.rs
index 8455bca..e36611e 100644
--- a/src/graph/matrix.rs
+++ b/src/graph/matrix.rs
@@ -43,10 +43,10 @@ pub fn show(matrix: &Vec<Vec<usize>>) {
     }
 }
 
-pub fn read_csv() -> Vec<Vec<usize>> {
+pub fn read_csv(file_name: String) -> Vec<Vec<usize>> {
     let mut matrix: Vec<Vec<usize>> = vec![];
     let dir: String = String::from("/home/rene/projects/Java/graphprogram/csv/");
-    let file_path: String = dir + &String::from("art-brck.csv");
+    let file_path = dir + &file_name;
     let mut csv = ReaderBuilder::new()
         .has_headers(false)
         .delimiter(b';')
diff --git a/src/lib.rs b/src/lib.rs
index 4f04607..d4f79b1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,7 +6,7 @@ mod tests {
 
     #[test]
     fn graph() {
-        let mut adjazenz_matrix: Vec<Vec<usize>> = read_csv();
+        let mut adjazenz_matrix: Vec<Vec<usize>> = read_csv("art-brck.csv".to_owned());
         let distanz_matrix: Vec<Vec<usize>> = calculate_distanz_matrix(&adjazenz_matrix);
         let weg_matrix: Vec<Vec<usize>> = calculate_weg_matrix(&adjazenz_matrix);
         let exzentrizitaeten: Vec<usize> = calculate_exzentrizitaeten(&distanz_matrix);
@@ -46,7 +46,7 @@ mod tests {
 
     #[test]
     fn matrix() {
-        let adjazenz_matrix: Vec<Vec<usize>> = read_csv();
+        let adjazenz_matrix: Vec<Vec<usize>> = read_csv("art-brck.csv".to_owned());
         
         assert_eq!(adjazenz_matrix, vec![
             vec![0, 0, 1, 1, 0],
diff --git a/src/main.rs b/src/main.rs
index 66258b9..6c0a4ca 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,12 +1,9 @@
 pub mod graph;
 
 pub fn main() {
-    output();
-}
+    let file_name = String::from("50n.csv");
 
-// This is just for the pupose of visualising the output
-fn output() {
-    let mut adjazenz_matrix: Vec<Vec<usize>> = graph::matrix::read_csv();
+    let mut adjazenz_matrix: Vec<Vec<usize>> = graph::matrix::read_csv(file_name);
     let distanz_matrix: Vec<Vec<usize>> = graph::calculate_distanz_matrix(&adjazenz_matrix);
     let weg_matrix: Vec<Vec<usize>> = graph::calculate_weg_matrix(&adjazenz_matrix);
 
@@ -32,4 +29,4 @@ fn output() {
     println!("components: {:?}", components);
     println!("bridges: {:?}", graph::find_bridges(&mut adjazenz_matrix, &components));
     println!("articulations: {:?}", graph::find_articulations(&adjazenz_matrix, &components));
-}
\ No newline at end of file
+}