/*
#include <stdio.h>
int main()
{
int a,b;
scanf("%d %d",&a,&b);
printf("%d+%d=%d\n", a, b, a+b);
printf("%d-%d=%d\n", a, b, a-b);
printf("%d*%d=%d\n", a, b, a*b);
printf("%d/%d=%d\n", a, b, a/b);
return 0;
}
*/
// HINT: double ~~~~ %lf ~~~~ %.2lf
/*
#include <stdio.h>
int main()
{
double a,b;
scanf("%lf %lf",&a,&b);
printf("%.2lf", a*b);
return 0;
}
*/