H,W=map(int,input().split())
S=[list(input()) for _ in range(H)]
for h in range(H):
    for w in range(W-5):
        if S[h][w:w+6]==["y","i","w","i","y","9"]:
            S[h][w+4]="Y"
        elif S[h][w:w+6]==["9","y","i","w","i","y"]:
            S[h][w+1]="Y"
for h in range(H):
    print("".join(S[h]))