#define STOPIT
#include <bits/stdc++.h>
#define loop(n) for (int ngtkana_is_a_genius = 0; ngtkana_is_a_genius < int(n); ngtkana_is_a_genius++)
#define rep(i, begin, end) for (int i = int(begin); (i) < int(end); i++)
#define all(v) v.begin(), v.end()
#define rand(l, r) std::uniform_int_distribution<>(l, r)(mt)
using lint = long long;
auto mt = std::mt19937_64(std::random_device{}());
auto cmn = [](auto& a, auto b){ if (a > b) {a = b; return true;} return false; };
auto cmx = [](auto& a, auto b){ if (a < b) {a = b; return true;} return false; };
void debug_impl() { std::cerr << std::endl; }
template <typename Head, typename... Tail>
void debug_impl(Head head, Tail... tail) { std::cerr << " " << head; debug_impl(tail...); }
#ifndef STOPIT
#define debug(...)\
  do {\
    std::cerr << std::boolalpha << "[" << #__VA_ARGS__ << "]:";\
    debug_impl(__VA_ARGS__);\
    std::cerr << std::noboolalpha;\
  } while (false)
#else
#define debug(...) 0;
#endif

template <typename T>
auto make_vector_impl(size_t sz, T t) {return std::vector<T>(sz, t);}

template <size_t N, typename T, typename U, std::enable_if_t<N == 1, std::nullptr_t> = nullptr>
auto make_vector(size_t sz, U u) {return make_vector_impl(sz, T(u));}

template <size_t N, typename T, std::enable_if_t<N == 1, std::nullptr_t> = nullptr>
auto make_vector(size_t sz) {return std::vector<T>(sz);}

template <size_t N, typename T, typename... Args, std::enable_if_t<N != 1, std::nullptr_t> = nullptr>
auto make_vector(size_t a, Args... args) {return make_vector_impl(a, make_vector<N - 1, T>(args...));}

template <typename T, typename Size_t>
auto& at(T& t, Size_t i) {return t.at(i);}

template <typename T, typename Size_t, typename... Args>
auto& at(T& t, Size_t i, Args... args) {return at(t.at(i), args...);}

template < typename Container, typename Value = typename Container::value_type, std::enable_if_t<!std::is_same< Container, std::string >::value, std::nullptr_t> = nullptr>
std::istream& operator>> (std::istream& is, Container& v)
  { for (auto & x : v) { is >> x; } return is; }

template < typename Container, typename Value = typename Container::value_type, std::enable_if_t<!std::is_same< Container, std::string >::value, std::nullptr_t> = nullptr >
std::ostream& operator<< (std::ostream& os, Container const& v) {
 os << "{";
  for (auto it = v.begin(); it != v.end(); it++)
    {os << (it != v.begin() ? "," : "") << *it;}
  return os << "}";
}

template < class Value >
struct vending_machine{
  Value i;
  vending_machine(Value i) : i(i){}
  auto issue() { return i++; }
  auto peek() const { return i; }
};
template < class Value >
auto make_vending_machine(Value i)
  { return vending_machine< Value >(i); }

template < typename Value >
auto transpose(std::vector< std::vector< Value > > const& grid) {
  int h = grid.size();
  int w = grid.front().size();
  auto ret = std::vector< std::vector< Value > > (w, std::vector< Value >(h));
  for (auto i = 0; i < h; i++) {
    for(auto j = 0; j < w; j++) {
      ret.at(j).at(i) = grid.at(i).at(j);
    }
  }
  return ret;
}

template < typename Value >
auto reflect(std::vector< std::vector< Value > > const& grid) {
  int h = grid.size();
  int w = grid.front().size();
  auto ret = std::vector< std::vector< Value > > (h, std::vector< Value >(w));
  for (auto i = 0; i < h; i++) {
    for(auto j = 0; j < w; j++) {
      ret.at(i).at(w-1-j) = grid.at(i).at(j);
    }
  }
  return ret;
}


int main() {
  vending_machine< int > vm(0);
  std::cin.tie(0); std::cin.sync_with_stdio(false);
  int h, w, k;
  std::cin >> h >> w >> k;
  auto grid = make_vector< 2, int >(h,w,-1);
  rep(i,0,h) rep(j,0,w) {
    char c; std::cin >> c;
    if (c == '#') {
      at(grid, i,j) = vm.issue();
    }
  }
  for (auto& v : grid) debug(v);
  assert(vm.peek() == k);
  loop(2) {
    loop(2) {
      rep(i,0,h) rep(j,1,w) {
        int& crr = at(grid,i,j);
        int& prv = at(grid,i,j-1);
        if (crr == -1) crr = prv;
      }
      for (auto& v : grid) debug(v);
      // std::cout << "" << std::endl;
      grid = reflect(grid);
    }
    std::swap(h,w);
    grid = transpose(grid);
  }
  rep(i,0,h) rep(j,0,w) at(grid,i,j)++;
  rep(i,0,h) {
    rep(j,0,w) {
      std::cout << (0 < j ? " " : "") << at(grid, i,j);
    }
    std::cout << std::endl;
  }
  return 0;
}

Measured memory_bytes: 1340