H,W=map(int,input().split()) S=[list(input()) for _ in range(H)] for h in range(H): w=0 while w < W-5: if S[h][w:w+6]==["y","i","w","i","y","9"]: S[h][w+4]="Y" w+=6 elif S[h][w:w+6]==["9","y","i","w","i","y"]: S[h][w+1]="Y" w+=6 else: w+=1 for h in range(H): print("".join(S[h]))