#include
int main(void)
{
int x, y;
char ch;
printf("Choice:\n");
printf("Add, Subtract, Multiply, or Divide?\n");
printf("Enter first letter: ");
ch = getchar();
printf("\n");
printf("Enter x: ");
scanf("%d", &x);
printf("Enter y: ");
scanf("%d", &y);
if(ch=='A') printf("%d", x+y);
if(ch=='S') printf("%d", x-y);
if(ch=='M') printf("%d", x*y);
if(ch=='D' && y!=0) printf("%d", x/y);
return 0;
}