#include <stdio.h>
#include <math.h>

int main()
{
    double c, d, x1, x2, itog, g;
    scanf("%lf %lf", &c, &d);
    x1 = (3 + sqrt(9 + abs(c * d))) / 2;
    x2 = (3 - sqrt(9 + abs(c * d))) / 2;
    g = pow(c * x1 * x1 * x1 + d * x2 * x2 - x1, 2);
    g = g + 3.14;
    itog = (abs((pow(sin(abs(c * pow(x1, 3) + d * x2 * x2 - c * d)) ,3))) / (sqrt(g)) + tan(c * x1 * x1 * x1 + d * x2 * x2 - x1));
    printf("%f", itog);
}