diff --git a/cv3/program.c b/cv3/program.c
index 592eaa8..864555c 100644
--- a/cv3/program.c
+++ b/cv3/program.c
@@ -11,6 +11,8 @@ typedef struct {
     int vershina;
 } StEk;
 
+int end_program = 0;
+
 void inicStEk(StEk* stek) {
     stek->vershina = 0;
 }
@@ -26,6 +28,7 @@ int isFull(StEk* stek) {
 void push(StEk* stek, double chislo) {
     if (isFull(stek)) {
         printf("full stack\n");
+        end_program = 1;
         return;
     }
     stek->chisla[stek->vershina] = chislo;
@@ -35,6 +38,7 @@ void push(StEk* stek, double chislo) {
 double pop(StEk* stek) {
     if (isEmpty(stek)) {
         printf("not enough operands\n");
+        end_program = 1;
         return 0;
     }
     return stek->chisla[--stek->vershina];
@@ -44,7 +48,8 @@ int main() {
     StEk stek;
     inicStEk(&stek);
     char bufer[256];
-    while (fgets(bufer, sizeof(bufer), stdin) != NULL) {
+    while (fgets(bufer, sizeof(bufer), stdin) != NULL ) {
+
         if (bufer[0] == '\n') {
             if (isEmpty(&stek)) {
                 printf("no input\n");
@@ -61,15 +66,19 @@ int main() {
 
         if (c == '\n' && *bufer != '\n' && *bufer != ' ') {
             push(&stek, chislo);
-
+            if(end_program == 1) {
+                return 0;
+            }
         } else if (c == '+' || c == '-' || c == '*' || c == '/') {
             if (isEmpty(&stek)) {
                 printf("not enough operands\n");
+                end_program = 1;
                 return 0;
             }
             double b = pop(&stek);
             if (isEmpty(&stek)) {
                 printf("not enough operands\n");
+                end_program = 1;
                 return 0;
             }
             double a = pop(&stek);
@@ -82,15 +91,18 @@ int main() {
             } else if (c == '/') {
                 if (b == 0) {
                     printf("division by zero\n");
+                    end_program = 1;
                     return 0;
                 }
                 push(&stek, a / b);
             }
         } else if (!isdigit(c) || !isalpha(c)) {
             printf("bad input\n");
+            end_program = 1;
             return 0;
         } else {
             printf("no input\n");
+            end_program = 1;
             return 0;
         }
         for (int i = 0; i < stek.vershina; i++) {