h,w = map(int,input().split())
s = [list(input()) for _ in range(h)]
r = "yiwiy9"
l = "9yiwiy"
for i in range(h):
    for j in range(w-6+1):
        if ''.join(s[i][j:j+6]) == l:
            s[i][j+1] = "Y"
        if ''.join(s[i][j:j+6]) == r:
            s[i][j+4] = "Y"

for i in range(h):
    print(''.join(s[i]))