JA-Stacks-Lab-03.DecimalToBinary

import java.util.ArrayDeque;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;


class Main {
  public static void main(String[] args) {

  Scanner sc = new Scanner(System.in);

  ArrayDeque<Integer> binaryStack = new ArrayDeque<>();

  int decimal = sc.nextInt();
  String binary = "";

    if (decimal == 0) {
      binary = "0";
    } else {

    while (decimal != 0) {
      binaryStack.push(decimal % 2);
      decimal /= 2;
    }


    while(!binaryStack.isEmpty()) {
      binary += binaryStack.pop();
    }
  }

  System.out.print(binary);
  }
}