#pragma GCC optimize(2)
#include<bits/stdc++.h>
#define int long long
using namespace std;
int T,v;
signed main(){
    cin>>T;
    while(T--){
        cin>>v;    vector<int> res;
        int s=0,cnt=0; int t=v;
        while(t)    s+=t%10,t/=10;
        for(int i=1;i<=s;i++){
            if(v%i==0&&s%i==0)    cnt++,res.push_back(i);
        }
        cout<<cnt<<endl;
        for(int i=0;i<res.size();i++)
            if(i==0)    cout<<res[i];
            else    cout<<' '<<res[i];
        puts("");
    }
    return 0;
}