/* 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 foo(int i)
	{
		if (i == 0) return;
		foo(i / 2);
		System.out.print(i % 2);
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		int i = 10;
		if (i > 0) foo(i);
		if (i == 0) System.out.print(0);
		if (i < 0) foo(i + 2147483647 + 1);
	}
}

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