diff --git a/cv3/program.c b/cv3/program.c
index 98f48e3..7b78371 100644
--- a/cv3/program.c
+++ b/cv3/program.c
@@ -61,6 +61,7 @@ int main() {
     char *pend;
     stack_top = -1;
     bool first_output = true;
+    bool operation_successful = true;
 
     while (fgets(arr, 50, stdin)) {
         if (arr[0] == '\n' || arr[0] == EOF) {
@@ -75,6 +76,7 @@ int main() {
             }
             printf("%.2f", number);
             first_output = false;
+            operation_successful = true;
         }
         else if (is_operation(arr)) {
             if (stack_top < 1) {
@@ -83,6 +85,7 @@ int main() {
                 }
                 printf("no input");
                 first_output = false;
+                operation_successful = false;
                 continue;
             }
 
@@ -96,6 +99,7 @@ int main() {
             }
             printf("%.2f", result);
             first_output = false;
+            operation_successful = true;
         }
         else {
             if (!first_output) {
@@ -103,16 +107,17 @@ int main() {
             }
             printf("no input");
             first_output = false;
+            operation_successful = false;
             continue;
         }
     }
 
-    if (stack_top == 0) {
+    if (operation_successful && stack_top == 0) {
         if (!first_output) {
             printf(" ");
         }
         printf("%.2f", pop());
-    } else {
+    } else if (!operation_successful) {
         if (!first_output) {
             printf(" ");
         }