h, w = map(int, input().split())
s = [list(input()) for _ in range(h)]

right = list("yiwiy9")
left = list("9yiwiy")

for i in range(h):
    j = 0
    while j < w - 5:
        if s[i][j:j+6] == right:
            s[i][j+4] = "Y"
            j += 6
        elif s[i][j:j+6] == left:
            s[i][j+1] = "Y"
            j += 6
        else:
            j += 1

for row in range(h):
    print("".join(s[row]))