#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < int(n); i++)
#define rrep(i, n) for (int i = int(n) - 1; i >= 0; i--)
#define reps(i, n) for (int i = 1; i <= int(n); i++)
#define rreps(i, n) for (int i = int(n); i >= 1; i--)
#define repc(i, n) for (int i = 0; i <= int(n); i++)
#define rrepc(i, n) for (int i = int(n); i >= 0; i--)
#define repi(i, a, b) for (int i = int(a); i < int(b); i++)
#define repic(i, a, b) for (int i = int(a); i <= int(b); i++)
#define each(x, y) for (auto &x : y)
#define all(a) (a).begin(), (a).end()
#define bit(b) (1ll << (b))

using namespace std;

using i32 = int;
using i64 = long long;
using u64 = unsigned long long;
using f80 = long double;
using vi32 = vector<i32>;
using vi64 = vector<i64>;
using vu64 = vector<u64>;
using vf80 = vector<f80>;
using vstr = vector<string>;

inline void yes() { cout << "Yes" << '\n'; exit(0); }
inline void no() { cout << "No" << '\n'; exit(0); }
inline i64 gcd(i64 a, i64 b) { if (min(a, b) == 0) return max(a, b); if (a % b == 0) return b; return gcd(b, a % b); }
inline i64 lcm(i64 a, i64 b) { return a / gcd(a, b) * b; }
inline u64 xorshift() { static u64 x = 88172645463325252ull; x = x ^ (x << 7); return x = x ^ (x >> 9); }
void solve(); int main() { ios::sync_with_stdio(0); cin.tie(0); cout << fixed << setprecision(16); solve(); return 0; }
template <typename T> class pqasc : public priority_queue<T, vector<T>, greater<T>> {};
template <typename T> class pqdesc : public priority_queue<T, vector<T>, less<T>> {};
template <typename T> inline void amax(T &x, T y) { if (x < y) x = y; }
template <typename T> inline void amin(T &x, T y) { if (x > y) x = y; }
template <typename T> inline T power(T x, i64 n, T e = 1) { T r = e; while (n > 0) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; }
template <typename T> istream& operator>>(istream &is, vector<T> &v) { each(x, v) is >> x; return is; }
template <typename T> ostream& operator<<(ostream &os, vector<T> &v) { rep(i, v.size()) { if (i) os << ' '; os << v[i]; } return os; }
template <typename T, typename S> istream& operator>>(istream &is, pair<T, S> &p) { is >> p.first >> p.second; return is; }
template <typename T, typename S> ostream& operator<<(ostream &os, pair<T, S> &p) { os << p.first << ' ' << p.second; return os; }

void solve() {
  int h, w, k;
  cin >> h >> w >> k;
  vstr a(h);
  rep(i, h) cin >> a[i];
  vector<vi32> acc(h + 1, vi32(w + 1));
  reps(i, h) reps(j, w) {
    if (a[i-1][j-1] == '#') {
      acc[i][j] = 1;
    }
    acc[i][j] += acc[i-1][j] + acc[i][j-1] - acc[i-1][j-1];
  }
  auto calc = [&](int u, int d, int l, int r) {
    return acc[d][r] - acc[d][l] - acc[u][r] + acc[u][l];
  };
  vector<vi32> ans(h, vi32(w));
  int index = 1;
  function<void(int, int, int, int)> rec = [&](int u, int d, int l, int r) {
    if (calc(u, d, l, r) == 1) {
      repi(i, u, d) repi(j, l, r) ans[i][j] = index;
      index++;
      return;
    }
    bool f = false;
    repic(i, u + 1, d - 1) {
      if (calc(u, i, l, r) > 0 && calc(i, d, l, r) > 0) {
        rec(u, i, l, r);
        rec(i, d, l, r);
        f = true;
        break;
      }
    }
    if (f) return;
    repic(i, l + 1, r - 1) {
      if (calc(u, d, l, i) > 0 && calc(u, d, i, r) > 0) {
        rec(u, d, l, i);
        rec(u, d, i, r);
        return;
      }
    }
  };
  rec(0, h, 0, w);
  rep(i, h) cout << ans[i] << endl;
}


Measured memory_bytes: 1664