import java.util.Scanner;
public class Practise4 {
/*
请输入任意一个int类型的正整数,打印出它的二进制数是多少
*/
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.println("请输入一个int类型的正整数:");
int num = scan.nextInt();
String result = "";
while(num > 0){
result = (num % 2) + result;
num /= 2;
}
System.out.println(result);
}
}