diff --git a/cv3/program.c b/cv3/program.c
index 30ad455..255cf7c 100644
--- a/cv3/program.c
+++ b/cv3/program.c
@@ -2,8 +2,8 @@
 #include <assert.h>
 #include <stdlib.h>
 #include <ctype.h>
-///@
-#define STACK_SIZE 500
+//// @ 
+#define STACK_SIZE 11
 
 struct Stack
 {
@@ -89,7 +89,9 @@ int main()
           else 
           {
               if(isdigit(c))
+              {
                 rez=atof(buf);
+              }
               else
               {
                 err=1;
@@ -99,6 +101,12 @@ int main()
           
           if(!err)
           {
+             if(count_stack(&mystack)==STACK_SIZE)  
+             {
+                 printf("full stack\n");
+                 err=4;
+                 break;
+             }
             push_stack(&mystack, rez); 
             print_stack(&mystack);
           }