/* -*- coding: utf-8 -*-
 *
 * 3420.cc:  No.3420 Letter Loading - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* constant */

const int MAX_N = 2549;
const int MAX_W = 50;
const int MAX_H = 50;

/* typedef */

/* global variables */

char s[MAX_N + 4];
char fs[MAX_H][MAX_W + 4];

/* subroutines */

/* main */

int main() {
  int n, w, h;
  scanf("%d%d%d%s", &n, &w, &h, s);

  for (int i = 0; i < h; i++) fill(fs[i], fs[i] + w, 'x');

  for (int i = 0, y = 0, x = 0; i < n; i++) {
    if (s[i] == 'o') fs[y++][x] = 'o';
    else x++, y = 0;
  }

  for (int i = h - 1; i >= 0; i--) puts(fs[i]);
  
  return 0;
}