diff --git a/cv3/program.c b/cv3/program.c
index 2e129db..9cf2e87 100644
--- a/cv3/program.c
+++ b/cv3/program.c
@@ -39,13 +39,13 @@ float calculate(struct stack* stack, char operator)
             res = num1+num2;
         break;
         case '-':
-            res = num1-num2;
+            res = num2-num1;
         break;
         case '*':
             res = num1*num2;
         break;
         case '/':
-            res = num1/num2;
+            res = num2/num1;
         break;
     }
     add(stack, res);
@@ -80,7 +80,7 @@ int main(int argc, char const *argv[])
         }
         for (int i = 0; i < calc_stack.size; i++)
         {
-            printf("%0.f ", calc_stack.values[i]);
+            printf("%2.f ", calc_stack.values[i]);
         }
         printf("\n");
     }