using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AtCorder
{
	public class Program
	{
		static void Main(string[] args)
		{
			var cin = new Scanner2();
			int h = cin.Int();
			int w = cin.Int();
			int k = cin.Int();
			bool[,] s = new bool[h, w];
			bool[] has = new bool[h];
			for (int i = 0; i < h; i++) {
				string temp = cin.Next();
				bool ha = false;
				for (int j = 0; j < w; j++) {
					if (temp[j] == '#') {
						s[i, j] = true;
						ha = true;
					} else {
						s[i, j] = false;
					}
				}

				has[i] = ha;
			}

			int[,] ans = new int[h, w];

			int count = 1;
			int beginI = 0;
			int lastI = 0;
			for (int i = 0; i < h; i++) {
				if (has[i] == false) {
					continue;
				}

				int beginJ = 0;
				for (int j = 0; j < w; j++) {
					if (s[i, j]) {
						for (int ii = beginI; ii <= i; ii++) {
							for (int jj = beginJ; jj <= j; jj++) {
								ans[ii, jj] = count;
							}
						}

						++count;
						beginJ = j + 1;
					}
				}

				for (int j = beginJ; j < w; j++) {
					for (int ii = beginI; ii <= i; ii++) {
						ans[ii, j] = count - 1;
					}
				}

				beginI = i + 1;
				lastI = i;
			}

			if (lastI != h - 1) {
				for (int i = lastI + 1; i < h; i++) {
					for (int j = 0; j < w; j++) {
						ans[i, j] = ans[lastI, j];
					}
				}
			}

			var sb = new StringBuilder();
			for (int i = 0; i < h; i++) {
				for (int j = 0; j < w; j++) {
					sb.Append($"{ans[i, j]} ");
				}

				sb.AppendLine();
			}

			Console.WriteLine(sb.ToString());
		}
	}


	public class Scanner2
	{
		private readonly char[] delimiter_ = new char[] { ' ' };
		private readonly string filePath_;
		private string[] buf_;
		private int index_;
		Func<string> reader_;

		public Scanner2(string file = "")
		{
			if (string.IsNullOrWhiteSpace(file)) {
				reader_ = Console.ReadLine;
			} else {
				filePath_ = file;
				var fs = new StreamReader(file);
				reader_ = fs.ReadLine;
			}
			buf_ = new string[0];
			index_ = 0;
		}

		public string Next()
		{
			if (index_ < buf_.Length) {
				return buf_[index_++];
			}

			string st = reader_();
			while (st == "") {
				st = reader_();
			}

			buf_ = st.Split(delimiter_, StringSplitOptions.RemoveEmptyEntries);
			if (buf_.Length == 0) {
				return Next();
			}

			index_ = 0;
			return buf_[index_++];
		}

		public int Int() => int.Parse(Next());
		public long Long() => long.Parse(Next());
		public double Double() => double.Parse(Next());

		public int[] ArrayInt(int N, int add = 0)
		{
			int[] Array = new int[N];
			for (int i = 0; i < N; i++) {
				Array[i] = Int() + add;
			}
			return Array;
		}

		public long[] ArrayLong(int N, long add = 0)
		{
			long[] Array = new long[N];
			for (int i = 0; i < N; i++) {
				Array[i] = Long() + add;
			}
			return Array;
		}

		public double[] ArrayDouble(int N, double add = 0)
		{
			double[] Array = new double[N];
			for (int i = 0; i < N; i++) {
				Array[i] = Double() + add;
			}
			return Array;
		}

		public void Save(string text)
		{
			if (string.IsNullOrWhiteSpace(filePath_)) {
				return;
			}

			File.WriteAllText(filePath_ + "_output.txt", text);
		}
	}
}

Measured memory_bytes: 21208