n, m = map(int, input().split())
grid = [list(input().strip()) for _ in range(n)]
八个方向的偏移量
directions = [(-1, -1), (-1, 0), (-1, 1),
(0, -1), (0, 1),
(1, -1), (1, 0), (1, 1)]
result = [[0 for _ in range(m)] for _ in range(n)]
for i in range(n):
for j in range(m):
if grid[i][j] == '':
result[i][j] = ''
continue
for row in result:
print(''.join(row))
