#include <stdio.h>
int main() {
   char operator;
   int firstNumber,secondNumber;
   printf("Enter an operator (+, -, *,): ");
   scanf("%c", &operator);
   printf("Enter first number: ");
   scanf("%d",&firstNumber);
   printf("Enter second number: ");
   scanf("%d",&secondNumber);
   switch(operator)
   {
       case '+':
           printf("%d + %d = %d",firstNumber, secondNumber, firstNumber + secondNumber);
           break;
       case '-':
           printf("%d - %d = %d",firstNumber, secondNumber, firstNumber - secondNumber);
           break;
       case '*':
           printf("%d * %d = %d",firstNumber, secondNumber, firstNumber * secondNumber);
           break;
       case '/':
           printf("%d / %d = %d",firstNumber, secondNumber, firstNumber / secondNumber);
           break;
       default:
           printf("Error! operator is not correct");
   }
   return 0;
}