#include<iostream>
using namespace std;
int main()
{
	int n;
	while(cin>>n&&n!=0)
	{
		int s;
		s=n%9;
		if(s==0)
			cout<<"9"<<endl;
		else
			cout<<s<<endl;
	}
	return 0;
}
	

• Re:POJ1519这样为什么通不过 (228) 201092187 2012-06-29 22:23:37