#!/usr/bin/python

import sys
from pprint import pprint

tile_types = {
    'air':' ',
    'sand':'.',
    'stone':'#',
}

grid = sys.stdin.read()
grid = grid.split('\n')
grid = map(list, grid)
grid = [i for i in grid if i != []]

print '-'*max(map(len, grid))
for y, row in enumerate(grid):
    for x, cell in enumerate(row):
        if cell == tile_types['sand']:
            try:
                if grid[y+1][x] == tile_types['air']:
                    grid[y][x], grid[y+1][x] = tile_types['air'], tile_types['sand']
                    cell = grid[y][x] # cell doesn't get updated on its own
            except IndexError:
                pass
        sys.stdout.write(cell)
    sys.stdout.write('\n')