#include <bits/stdc++.h>
#pragma GCC optimize("O3")
// #define int long long
#define ll long long
#define fi first
#define se second
#define lf ((id<<1))
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
#define pb push_back
#define ld double
using namespace std;
const int MAXN = 2e5+10;
const ld INF = 1e9+10;
typedef pair<int,int> pii;
void chmn(auto &a, auto b){ a = min(a, b); }
int n, m, k;
string s[4110];
int a[4110][4110];
bool done[4110];
signed main(){
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin>>n>>m>>k;
for(int i=1; i<=n; i++){
cin>>s[i];
}
for(int i=1; i<=n; i++){
// if(done[i]) continue;
for(int j=i+1; j<=n; j++){
if(done[j] && done[i]) continue;
int dif = 0;
for(int p=0; p<m; p++){
if(s[i][p] != s[j][p]) dif++;
if(dif > k) break;
}
if(dif != k){
done[i] = 1;
done[j] = 1;
}
}
}
for(int i=1; i<=n; i++){
if(done[i]) continue;
cout << i << '\n';
}
}
