#include <bits/stdc++.h>
typedef long double ld;
using namespace std;
set <long long> x;
long long n,i,j,k,maxR,ir,R,p,c,m,r;
string s1,s2;
long long dist(string s1, string s2){
long long i,c;
    c=0;
for(i=0;i<s1.length();i++){
    if(s1[i]!=s2[i])c++;
    }
    return c;
}



int main()
{
    m=100000000;
    cin >> s1 >> n;
    for(i=1;i<=n;i++){
        cin >> s2;
        r=dist(s1,s2);
        if(r==m){
            x.insert(i);
        }
        else if(r<m){
            x.clear();
            x.insert(i);
        }
    }
    cout << x.size() << endl << ir;
    for(auto p:x)cout << p <<" ";
}