#include <iostream>
#include <cstring>
#include <fstream>
#include <vector>
#include <queue>
#define Nmax 4100
using namespace std;
ifstream fin("triplete.in");
ofstream fout("triplete.out");
vector <int> G[Nmax];
queue <int> Q;
int N,M,Use[Nmax],sol;


void Read()
{
    fin>>N>>M;
    for(int i=1;i<=M;++i)
    {
        int x,y;
        fin>>x>>y;
        G[x].push_back(y);
        G[y].push_back(x);
    }
}

void BFS( int Satrt)
{
    for(int i=1;i<=N;++i)
    {
         memset(Use,0,sizeof(Use));
     for (unsigned int j=0;j<G[i].size();j++)
           {
               Use[G[i][j]]=1;
            }
    for (unsigned int j=0;j<G[i].size();j++)
    {
            for (unsigned int k=0;k<G[G[i][j]].size();k++)
                if (Use[G[G[i][j]][k]])
                    sol++;

    }
    }
}

int main()
{
Read();
BFS(1);
fout<<sol/6<<"\n";
    return 0;
}