def main():
    H, W = map(int, input().split())
    S = []
    for _ in range(H):
        S.append(list(input()))

    done = [[False] * W for _ in range(H)]

    for h in range(H):
        for w in range(W):
            if S[h][w] == "9":
                # 右尻尾
                if w - 1 >= 0 and S[h][w - 1] == "y" and not done[h][w - 1]:
                    S[h][w - 1] = "Y"
                
                # 左尻尾
                else:
                    S[h][w + 1] = "Y"
                    done[h][w + 5] = True

    for s in S:
        print("".join(s))

    return

main()