import java.util.*;
import java.io.*;

class Main{
    public static void main(String[] args){
        FastScanner fsc=new FastScanner();
        int h=fsc.nextInt(), w=fsc.nextInt(), k=fsc.nextInt();
        char[][] cake=new char[h][w];
        boolean[] hasStrawberry=new boolean[h];
        for(int i=0;i<h;i++){
            String piece=fsc.next();
            cake[i]=piece.toCharArray();
            hasStrawberry[i]=piece.contains("#");
        }
        fsc.close();
        int[][] ans=new int[h][w];
        int now=1;
        for(int i=0;i<h;i++){
            boolean first=true;
            if(hasStrawberry[i]){
                for(int j=0;j<w;j++){
                    if(cake[i][j]=='#'){
                        if(!first) now++;
                        else first=false;
                    }
                    ans[i][j]=now;
                }
                now++;
            }
        }
        for(int i=0;i<h;i++){
            if(!hasStrawberry[i]){
                int up=i-1, down=i+1;
                if(up>=0 && hasStrawberry[up]){
                    ans[i]=ans[up];
                    hasStrawberry[i]=true;
                }
                else{
                    while(down<=h){
                        if(hasStrawberry[down]){
                            ans[i]=ans[down];
                            hasStrawberry[i]=true;
                            break;
                        }
                        else down++;
                    }
                }
            }
        }
        for(int i=0;i<h;i++){
            for(int j=0;j<w;j++){
                System.out.print(ans[i][j]+" ");
            }
            System.out.println("");
        }
    }
    static class FastScanner {
        private final InputStream in = System.in;
        private final byte[] buffer = new byte[1024];
        private int ptr = 0;
        private int buflen = 0;
        private boolean hasNextByte(){
            if(ptr<buflen) return true;
            else{
                ptr = 0;
                try{
                    buflen = in.read(buffer);
                }
                catch(IOException e){
                    e.printStackTrace();
                }
                if(buflen<=0) return false;
            }
        return true;
        }
        private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
        private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
        public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
        public String next() {
            if (!hasNext()) throw new NoSuchElementException();
            StringBuilder sb = new StringBuilder();
            int b = readByte();
            while(isPrintableChar(b)) {
                sb.appendCodePoint(b);
                b = readByte();
            }
            return sb.toString();
        }
        public long nextLong() {
            if (!hasNext()) throw new NoSuchElementException();
            long n = 0;
            boolean minus = false;
            int b = readByte();
            if (b == '-') {
                minus = true;
                b = readByte();
            }
            if (b < '0' || '9' < b) throw new NumberFormatException();
            while(true){
                if ('0' <= b && b <= '9') {
                    n *= 10;
                    n += b - '0';
                }
                else if(b == -1 || !isPrintableChar(b)) return minus ? -n : n;
                else throw new NumberFormatException();
                b = readByte();
            }
        }
        public int nextInt() {
            long nl = nextLong();
            if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
            return (int) nl;
        }
        public double nextDouble() { return Double.parseDouble(next());}
        public void close(){
            try{in.close();}
            catch(IOException e){e.printStackTrace();}
        }
    }
}

Measured memory_bytes: 43176