import java.util.Scanner;

/**
 * 输入一个整数，将其转换成八进制数输出
 * 
 * @author kif
 *
 */
public class Octal {

	public static void exchange(int number) {
		StringBuilder strBui = new StringBuilder();
		while (number > 0) {
			strBui.append(number % 8);
			number /= 8;
		}
		System.out.println(strBui.reverse().toString());
	}

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		while(true){
			System.out.println("请输入一个整数：");
			int number = input.nextInt();
			Octal.exchange(number);
		}
	}

}