import java.util.*;
/**
* Collection 与iterator接口
*
*
**/
public class TestCollection
{
public static void main(String args[])
{
ArrayList v = new ArrayList();
int b = 0;
System.out.println("please input the number:");
while(true)
{
try
{
b = System.in.read();
}
catch(Exception e)
{
e.printStackTrace();
}
if(b=='\r' || b=='\n')
{
break;
}
else
{
int num = b -'0';
v.add(new Integer(num));
}
}
int sum = 0;
Iterator e = v.iterator();
while(e.hasNext())
{
Integer intObj = (Integer)e.next();
sum += intObj.intValue();
}
System.out.println(sum);
}
}