h,w = map(int,input().split())

s = [list(input()) for _ in range(h)]

vis = [[True for _ in range(w)] for _ in range(h)]

for i in range(h):
    for j in range(w):
        if vis[i][j]:
            if s[i][j] == 'y':
                s[i][j+4] = 'Y'
                vis[i][j+5] = False
            
            if s[i][j] == '9':
                s[i][j+1] = 'Y'
                vis[i][j+5] = False

for i in range(h):
    print("".join(s[i]))