diff --git a/du4/output/train.exe b/du4/output/train.exe
index a900acb..67d8328 100644
Binary files a/du4/output/train.exe and b/du4/output/train.exe differ
diff --git a/du4/train.c b/du4/train.c
index f234435..efd5b2b 100644
--- a/du4/train.c
+++ b/du4/train.c
@@ -4,15 +4,15 @@
 #include "train.h"
 
 struct car* add_car (struct car* first, const char* target) {
-    struct car* novyj_vagon = (struct car*) malloc(sizeof(struct car)); //создаём новую строку
+    struct car* novyj_vagon = (struct car*) malloc(sizeof(struct car)); // создаём новый вагон
     
     if (novyj_vagon == NULL) {
         printf("Chyba: nepodarilo sa vytvorit novy vozen!\n");
         return first;
     }
 
-    strncpy(novyj_vagon->value, target, SIZE - 1); //Потому что строка в C всегда должна заканчиваться нулём
-    novyj_vagon->value[SIZE-1] = '/0';
+    strncpy(novyj_vagon->value, target, SIZE - 1);
+    novyj_vagon->value[SIZE - 1] = '\0';
     novyj_vagon->next = NULL;
 
     if (first == NULL) {
@@ -20,27 +20,26 @@ struct car* add_car (struct car* first, const char* target) {
     }
 
     struct car* actual = first;
-    while (actual->next !=NULL) {
+    while (actual->next != NULL) {
         actual = actual->next;
     }
     actual->next = novyj_vagon;
     return first;
-
 }
 
 void print_train (struct car* first) {
     if (first == NULL) {
-        printf("vlak je prazdny!");
+        printf("vlak je prazdny!\n");
         return;
     }
     
     struct car* actual = first;
     int schet = 1;
     
-    while (actual !=NULL) {
-        printf("%d. [%s]", actual->value);
+    while (actual != NULL) {
+        printf("%d. [%s]", schet, actual->value);
         if (actual->next != NULL) {
-            printf("->");
+            printf(" -> ");
         }
         actual = actual->next;
         schet++;
@@ -48,6 +47,17 @@ void print_train (struct car* first) {
     printf("\n");
 }
 
+void cancel_train (struct car* first) {
+    struct car* current = first;
+    while (current ! = NULL) {
+        struct car* next_one = current->next;
+           memset(current->value, 0, SIZE);
+            free(current);
+            current = next_one;;
+    }
+}
+
+
 int main() {
     return 0;
 }
\ No newline at end of file