#!/bin/python3

import math
import os
import random
import re
import sys

#
# Complete the 'bomberMan' function below.
#
# The function is expected to return a STRING_ARRAY.
# The function accepts following parameters:
#  1. INTEGER n
#  2. STRING_ARRAY grid
#
    
      
def _to_strings(grid):
    res=[]
    for s in grid:
        res.append(''.join(['.' if x<=0 else 'O' for x in s]))
    return res
    
    
def _detonate(grid, i, j):
    grid[i][j]=0
    if i>0 and grid[i-1][j]!=1:
        grid[i-1][j]=0
    if j>0 and grid[i][j-1]!=1:
        grid[i][j-1]=0
    if i<len(grid)-1 and grid[i+1][j]!=1:
        grid[i+1][j]=0
    if j<len(grid[0])-1 and grid[i][j+1]!=1:
        grid[i][j+1]=0
    
    
def _plant(grid):
    for i in range(len(grid)):
        for j in range(len(grid[i])):
            if (grid[i][j]<=0):
                grid[i][j]=3
    pass
    
        
def _next_tick(grid, tick):
    if tick==2:
        return
    for i in range(len(grid)):
        for j in range(len(grid[i])):
            if grid[i][j]>1:
                grid[i][j]-=1
    if tick==1 or tick%2 == 0 and tick!=2 :
        _plant(grid)
        return
  
    for i in range(len(grid)):
        for j in range(len(grid[i])):
            if grid[i][j]==1:
                _detonate(grid, i, j)
                
               
def _to_grid(grid):
    res=[]
    for s in grid:
        res.append([0 if x=='.' else 3 for x in s])
    return res

def _to_grid(grid):
    res=[]
    for s in grid:
        res.append([0 if x=='.' else 3 for x in s])
    return res 

    
def bomberMan(n, grid):
    if n%2==0:
        return ['O'*len(grid[0])]*len(grid)
    grid=_to_grid(grid)
    if n==1:
        return _to_strings(grid)
    for i in range(1, min(8, 4+n%4+1)):
        _next_tick(grid, i)
    return _to_strings(grid)


    
    # Write your code here

if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    first_multiple_input = input().rstrip().split()

    r = int(first_multiple_input[0])

    c = int(first_multiple_input[1])

    n = int(first_multiple_input[2])

    grid = []

    for _ in range(r):
        grid_item = input()
        grid.append(grid_item)

    result = bomberMan(n, grid)

    fptr.write('\n'.join(result))
    fptr.write('\n')

    fptr.close()



    fptr.close()