H, W = map(int, input().split())
S = [list(input()) for _ in range(H)]
for i in range(H):
    for j in range(W):
        if "".join(S[i][j:j+6]) == "yiwiy9":
            S[i][j+4] = "Y"

for i in range(H):
    for j in range(W-1, -1, -1):
        T = []
        if j-5 < 0:
            break
        for t in range(6):
            T.append(S[i][j-t])
        
        if "".join(T) == "yiwiy9":
            S[i][j-4] = "Y"




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