#include <iostream>
#include <cstring>
#include <cstdio>
#include <vector>

using namespace std;

int v;
vector<int> a;

int num(int x)
{
    int ret=0;
    while (x)
    {
        ret+=x%10;
        x/=10;
    }
    return ret;
}

int main()
{
    int T;
    scanf("%d",&T);
    while (T--)
    {
        a.clear();
        scanf("%d",&v);
        int cur=num(v);
        for (int i=1;i<=cur;i++) if (cur%i==0 && v%i==0) a.push_back(i);
        printf("%d\n",a.size());
        for (int i=0;i<a.size();i++) if (i!=a.size()-1) printf("%d ",a[i]);
        else printf("%d",a[i]);
        printf("\n");
    }
    return 0;
}