#include <stdio.h>

int main() 
{
    float high, weight;
    float BMI, meter_fang,a;
    scanf("%f %f", &weight, &high);
    a = high / 100;
    meter_fang = a * a;
    BMI = weight / meter_fang;
    printf("%.2f", BMI);
    return 0;
}