#include <stdio.h>
void main() {
float a, b;
printf("X?");
scanf("%f",&a);
printf("Y?");
scanf("%f",&b);
printf("%f+%f=%f\n",a,b,a+b);
printf("%f*%f=%f\n",a,b,a*b);
printf("%f-%f=%f\n",a,b,a-b);
printf("%f/%f=%.f\n",a,b,a/b);
}