#include <stdio.h>
#include <stdlib.h>

int main()
{
int x,y;
int i;

printf("input x=");
scanf("%d", &x);
printf("input y=");
scanf("%d", &y);

printf("oper: \n1 = *\n2 = +\n3 = / \n4 = -\nselect code = ");
scanf("%d", &i);

if(i == 1)
printf("%d+%d=%d", x,y,x*y);
if(i == 2)
printf("%d+%d=%d", x,y,x+y);
if(i == 3)
printf("%d+%d=%d", x,y,x+y);
if(i == 4)
printf("%d+%d=%d", x,y,x-y);
return 0;
}