#input of int(split by space)
def get_i()
  return gets.chomp.split(" ").map(&:to_i)
end
#input of float(split by space)
def get_f()
  return gets.chomp.split(" ").map(&:to_f)
end
#input of string(split by space)
def get()
  return gets.chomp.split(" ")
end
#input of string(split per one character)
def get_nsp()
  return gets.chomp.split("")
end
#yes or no decision
def yn_judge(bool,y="Yes",n="No")
  return bool ? y : n 
end
#create of array
def array(size1,init=nil,size2=-1)
  if size2==-1
      return Array.new(size1){init}
  else
      return Array.new(size2){Array.new(size1){init}}
  end
end

def max(a,b)
    return a>b ? a : b
end

def min(a,b)
    return a>b ? b : a
end

INF=Float::INFINITY

H,W,K=get_i
c=array(H)
H.times do|i|
    c[i]=get_nsp
end
ans=0
(2**H).times do|bit_h|
    (2**W).times do|bit_w|
        cnt=0
        H.times do|i|
            next if (bit_h&(2**i)).zero?
            W.times do|j|
              next if (bit_w&(2**j)).zero?
              cnt+=1 if c[i][j]=="#"   
            end
        end
        ans+=1 if cnt==K
    end
end
puts ans