#include <stdio.h>
int main()
{
int weight, high;
scanf("%d %d", &weight, &high);
double high_metre = high / 100.0;
printf("%.2lf", weight/ (high_metre * high_metre));
return 0;
}
#include <stdio.h>
int main()
{
int weight, high;
scanf("%d %d", &weight, &high);
double high_metre = high / 100.0;
printf("%.2lf", weight/ (high_metre * high_metre));
return 0;
}