diff --git a/cv5/a_train.c b/cv5/a_train.c
index 75396af..c313084 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -17,9 +17,9 @@ struct car* add_car(struct car* first,const char* target) {
     struct car* temp=first;
     int length=0;
     while(temp!=NULL){
-        temp=temp->next;
-        length++;
-        printf("%d",length);
+        if(temp->next!=NULL)
+            temp=temp->next;
+            length++;
     }
 
     strcpy(newcar->value, target);