package java8s1;
import java.util.Scanner;
public class whiledemo {
public static void main(String[] args) {
System.out.print("请输入一个任意位数的正整数:");
Scanner scanner=new Scanner(
System.in);
long x=0;
long t;
long n=scanner.nextInt();
while(n>0)
{t=n%10;
x=x+t;
n=n/10;
}
System.out.println(x);
}
}
