diff --git a/cv5/a_train.c b/cv5/a_train.c
index 280f415..fc1d311 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -40,20 +40,21 @@ void print_train(struct car* first) {
 }
 
 void cancel_train(struct car* first) {   
-    if(first == NULL){
-        return;
+    if(!first){
+        return NULL;
     }
-    else if(first->value != NULL){
-       struct car* help = first->next;
+    struct car* help = cancel_train(first->next);
+    if(first->value != NULL){
+       first->next = help;
        free(first);
-       //first->next = NULL;
-       cancel_train(help);
+       //cancel_train(help);
        //first->next = NULL;
     }
-    else if(first->next == NULL){
-        free(first);
-        cancel_train(first->next);
-    }
+    //else if(first->next == NULL){
+        //free(first);
+      //  cancel_train(first->next);
+   // }
+    free(first);
 
 }