#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main(){
  int N, W, H, a = 0;
  cin >> N >> W >> H;
  vector<int> v(W);
  string S;
  cin >> S;
  for(char x: S){
    if(x == 'o')v[a]++;
    else a++;
  }
  for(int i = H-1; i >= 0; i--){
    rep(j, W){
      if(v[j]>i)cout << 'o';
      else cout << 'x';
    }
    cout << endl;
  }
}