height, width = map(int, input().split())

input_list = []
for i in range(height):
    input_list.append(input())

for row in input_list:
    pos_w = row.find('w')
    pos_9 = row.find('9')

    buf = list(row)
    if pos_9 < pos_w:
        buf[pos_9+1] = 'Y'
    else:
        buf[pos_9-1] = 'Y'
    print("".join(buf))