Mop1

public class Utilities1 {
    public static int retries(String num, String number) {
        String[] arr = num.split("");
        int sum = 0;

        for (int i = 0; i < num.length(); i++) {
            if(arr[i].contains(number)){
                sum++;
            }
        }
        return sum;
    }
    public static String decToBin(int dec){
        String bin = "";
        int num = TheGreatestExtent(dec);

        for (int i = 0; num > 1; i++) {
            if(dec >= num){
                bin += "1";
                dec -= num;
            }else{
                bin += "0";
            }
            num /= 2;
        }

        if(dec%2 == 1){
            bin += "1";
        }else{
            bin += "0";
        }
        return bin;
    }
    public static int TheGreatestExtent(int dec){
        int num = 1;

        while(num*2 <= dec){
            num *= 2;
        }
        return num;
    }
    public static String reverseCode(int num) {
        String str = decToBin(num);
        String sim = "";

        if (num > 0) {
            sim = "0|";
        } else if (num < 0) {
            sim = "1|";

            str = decToBin(num*-1);
            String[] arr = str.split("");

            str = "";
            for (int i = 0; i < arr.length; i++) {
                if(arr[i].equals("1")){
                    str+="0";
                }else{
                    str+="1";
                }
            }
        }
        return sim + str;
    }
    public static String straightCode(int num) {
        String str = decToBin(num);
        String sim = "";

        if (num > 0) {
            sim = "0|";
        } else if (num < 0) {
            str = decToBin(num*-1);
            sim = "1|";
        }
        return sim + str;
    }
    public static int zeros(String num, String number) {
        String[] arr = num.split("");
        int retries = 0;

        for (int i = 0; i < num.length(); i++) {
            if(arr[i].contains(number)){
                retries++;
            }
        }
        return retries;
    }
}
//////////////////////////////////////////////////////////////////////////
public class Add {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String bin = scanner.nextLine();
        System.out.println(Utilities1.retries(bin,"1"));
    }
}
///////////////////////////////////////////////////////////////////////////
public class DecToBin {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int dec = scanner.nextInt();
        System.out.println(Utilities1.decToBin(dec));
    }
}
//////////////////////////////////////////////////////////////////////////

public class ReverseCode {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int num = scanner.nextInt();
        System.out.println(Utilities1.reverseCode(num));
    }
}
////////////////////////////////////////////////////////////////////////
public class StraightCode {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int num = scanner.nextInt();
        System.out.println(Utilities1.straightCode(num));
    }

}
/////////////////////////////////////////////////////////////////////////////
public class StraightCode {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int num = scanner.nextInt();
        System.out.println(Utilities1.straightCode(num));
    }

}
////////////////////////////////////////////////////////////////////////////////
public class Zeros {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String bin = scanner.nextLine();
        System.out.println(Utilities1.zeros(bin,"0"));
    }
}
////////////////////////////////////////////////////////////////////////////////