#include<stdio.h>

int main()
{
    int weight = 0;
    int height = 0;
    scanf("%d %d", &weight, &height);
    float BMI = 0.0f;
    float height_m = height/100.0;
    BMI = weight/(height_m * height_m);
    printf("%.2f", BMI);

    return 0;
}