//#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream cin("triplete.in");
ofstream cout("triplete.out");
int cnt=0;
vector<int> v[5000];
void dfs(int nod,int lung,int st){
    if(lung==3){
        if(nod==st){
            cnt++;
        }
        return;
    }
    for(int i=0;i<v[nod].size();i++){
        dfs(v[nod][i],lung+1,st);
    }
}
int main()
{
    int n,m,a,b;
    cin>>n>>m;
    for(int i=1;i<=m;i++){
        cin>>a>>b;
        v[a].push_back(b);
        v[b].push_back(a);
    }
    for(int i=1;i<=n;i++){
        dfs(i,0,i);
    }
    cout<<cnt/6;
    return 0;
}