H, W = map(int, input().split())
for _ in range(H):
    S = list(input())
    for i in range(W - 6 + 1):
        if all(S[i + k] == "yiwiy9"[k] for k in range(6)):
            S[i + 4] = 'Y'
        elif all(S[i + k] == "9yiwiy"[k] for k in range(6)):
            S[i + 1] = 'Y'
    print(*S, sep='')