diff --git a/cv5/a_train.c b/cv5/a_train.c
index ceb0ce9..a4318f1 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -7,9 +7,8 @@
 struct car* add_car(struct car* first,const char* target) {
     struct car* newcar = calloc(1, sizeof(struct car));
     if(target == NULL){
-        exit(0);
+        return;
     }
-
     strcpy(newcar->value, target);
    
     if(first == NULL){
@@ -47,7 +46,7 @@ void cancel_train(struct car* first) {
        cancel_train(first->next);
        first->next = NULL;
     }
-    if(first->next == NULL){
+    else if(first->next == NULL){
         free(first);
     }