h,w=gets.split.map(&:to_i)
s = $<.map(&:chomp)
flag = false
h.times{|i|
    if flag
        break
    end
    cnt = s[i].count(?*)
    if cnt == 1
        if s[i].index(?*) != 0
            s[i][0] = ?*
        else
            s[i][1] = ?*
        end
        flag = true
    elsif cnt == 2
        if i != 0
            s[0][0] = ?*
        else
            s[1][0] = ?*
        end
        flag = true
    end
    }
h.times{|i|
    puts s[i]
    }