/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
	}
}

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#include <iostream>
#include <cmath>

int main() {
    for (int y = 15; y >= -15; y--) {
        for (int x = -15; x <= 15; x++) {
            double a = x * 0.05;
            double b = y * 0.1;
            if (pow(a * a + b * b - 1, 3) - a * a * b * b * b <= 0) {
                std::cout << "*";
            } else {
                std::cout << " ";
            }
        }
        std::cout << std::endl;
    }
    return 0;
}