n,m=gets.split.map &:to_i
a=Array.new(n).map{Array.new}
m.times do
  x,y=gets.split.map &:to_i
  a[x]<< y
  a[y]<< x
end
c=0
n.times do |i|
  g=[*0..n-1]-a[i]-[i]
  g.each do |e|
    gg=a[i]&a[e]
    cc=0
    gg.each do |ee|
      cc+=(gg-[ee]).count{|i|!a[ee].include?(i)}
    end
    c+=cc/2
  end
end
p c/4