#include<stdio.h>
#include<math.h>
int main()
{
    int a,b,result;
    char operator;
    printf("Enter two integers: ");
    scanf("%d %d", &a, &b);
    printf("Enter operation: ");
    scanf(" %c", &operator);
    switch(operator)
    {
        case '+':
            result=a+b;
            printf("Output: %d\n",result);
            break;

        case '-':
            result=a-b;
            printf("Output: %d\n",result);
            break;

        case '*':
            result=a*b;
            printf("Output: %d\n",result);
            break;

        case '/':
        {
            switch(b)
            {
                case 0:
                    printf("ERROR: Divide by zero\n");
                    break;

                default:
                    result=a/b;
                    printf("Output: %d\n",result);
            }
        }
        break;
        default:
            printf("%c is not a valid operation\n", operator);

    }

    return 0;
}