import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StreamTokenizer;
import java.util.Arrays;

public class Main{
    
    private static int getSum(int d)
    {
        int ret = 0,t = d;
        while(t!=0)
        {
            ret +=(t%10);
            t/=10;
        }
        return ret;
    }
    
    public static void main(String[] args) throws IOException {
        int[] value = new int[100];
        Arrays.fill(value, 0);
        StreamTokenizer st = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
        PrintWriter pr = new PrintWriter(System.out);
        int K ;
        st.nextToken();
        K = (int)st.nval;
        while(K-->0)
        {
            int total = 0;
            st.nextToken();
            int d = (int)st.nval;
            int t = getSum(d);
            for(int i=1;i<=t;i++)
            {
                if(t%i==0&&d%i==0)
                {
                    value[total++]=i;
                }
            }
            pr.println(total);
            for(int i=0;i<total;i++)
            {
                pr.print(value[i]);
                if(i!=total-1)
                {
                    pr.print(" ");
                }
            }
            pr.println();
            pr.flush();
        }
        
    }
}