public class test_PrintB{
    public static void print(int num){
        for (int i =31;i >=0;i--){
            System.out.print((num & (1<<i))==0?"0":"1");
        } 
        System.out.println();
    }
    public static void main(String[] args){
        int num = 1024;
        print(num);
    }
}