#include <stdio.h>

int main()
{
    int number1, number2;
    char operator;
    printf("enter your first number\n");
    scanf("%d",&number1);
    printf("enter your second number\n");
    scanf("%d",&number2);
    printf("enter the operation to be done\n");
    scanf("%c",&operator);
    switch (operator)
        {
            case '+':
            printf("%d is the result\n", number1+number2);
            break;
            case '-':
            printf("%d is the result\n", number1-number2);
            break;
            case '*':
            printf("%d is the result\n", number1*number2);
            break;
            case '/':
            printf("%d is the result\n",number1/number2);
            break;
            default:
            printf("invalid input\n");
            }
    return 0;
}