H, W = map(int, input().split())
S=[list(input()) for i in range(H)]
left=list('9yiwiy')
right=list('yiwiy9')
if W>=6:
    for i in range(H):
        for j in range(W-5):
            if S[i][j:j+6]==left:
                S[i][j+1]='Y'
            elif S[i][j:j+6]==right:
                S[i][j+4]='Y'
for i in S:
    print(''.join(i))