h,w = gets.split.map(&:to_i)
ss = []
f=[]
for i in 0...h
    line = gets.chomp
    f<<[]
    for j in 0...w
        f[i] << false
        if line[j] == '*'
            ss << [i,j]
            f[i][j] = true
        end
    end
end

def star(a, b, c)
    dx1 = a[0] - b[0]
    dy1 = a[1] - b[1]
    dx2 = a[0] - c[0]
    dy2 = a[1] - c[1]
    dx1 * dy2 != dy1 * dx2
end

for i in 0...h
    for j in 0...w
        if star([i, j], ss[0], ss[1])
            f[i][j] = true
for i in 0...h
    puts (0...w).map{|j| f[i][j] ? '*' : '-'}.join('')
end
            exit 0
        end
    end
end
p stars