diff --git a/src/c/funktionen.c b/src/c/funktionen.c
index 4191c7d..448b0fb 100644
--- a/src/c/funktionen.c
+++ b/src/c/funktionen.c
@@ -15,4 +15,8 @@ int choose_program() {
     scanf("%d", &i);
 
     return i;
+}
+
+int addThreeNumbers(int a, int b, int c) {
+    return a + b + c;
 }
\ No newline at end of file