import std.algorithm;
import std.array;
import std.ascii;
import std.container;
import std.conv;
import std.math;
import std.numeric;
import std.range;
import std.stdio;
import std.string;
import std.typecons;

import std.random;

real chi2(int m) {
    real ans = 0;
    int r = m;
    while (true) {
        real u0 = uniform(0.0, 1.0);
        real u1 = uniform(0.0, 1.0);
        real v0 = 2 * u0 - 1;
        real v1 = 2 * u1 - 1;
        real s = v0 * v0 + v1 * v1;
        if (s > 1.0) continue;
        real x_2 = (-2.0 * log(s) / s) * v0 * v0;
        real y_2 = (-2.0 * log(s) / s) * v1 * v1;
        ans += x_2; r--; if (r == 0) break;
        ans += y_2; r--; if (r == 0) break;
    }
    return ans;
}

void main(in string[] args) {
    int free_deg = args[1].to!int;
    int try_num = args[2].to!int;
    foreach (i; 0 .. try_num) {
        writefln("%.5f", chi2(free_deg));
    }
}