diff --git a/src/funktion.c b/src/funktion.c
index cace527..0be2aa9 100644
--- a/src/funktion.c
+++ b/src/funktion.c
@@ -282,4 +282,12 @@ int dezimal_to_bin(int dezimal) {
     } else {
         return (dezimal % 2 + 10 * dezimal_to_bin(dezimal / 2));
     }
-}
\ No newline at end of file
+}
+int dezimal_binar_linksverschiebung(int dezimal) {
+    dezimal = dezimal * 2;
+    if (dezimal == 0) {
+        return 0;
+    } else {
+        return (dezimal % 2 + 10 * dezimal_to_bin(dezimal / 2));
+   }
+ }
\ No newline at end of file
diff --git a/src/funktion.h b/src/funktion.h
index 12affd7..571c3c3 100644
--- a/src/funktion.h
+++ b/src/funktion.h
@@ -45,5 +45,6 @@ double probability_from_tree(double successful_outcomes, double total_outcomes,
 int binomial_coefficient(int n, int k);
 int ByOne(int n);
 int dezimal_to_bin(int dezimal);
+int dezimal_binar_linksverschiebung(int dezimal);
 
 #endif
diff --git a/src/main.c b/src/main.c
index f4057af..49e8116 100644
--- a/src/main.c
+++ b/src/main.c
@@ -211,4 +211,8 @@ int main()
 
     dezimal = getValue('X');
     dezimal_to_bin(dezimal);
+
+    printf("Geben sie eine Zahl ein: ");
+    dezimal = getValue('X');
+    dezimal_binar_linksverschiebung(dezimal);
 }