#include<fstream>
#include<iostream>
#include<vector>
#include<bitset>
#define NMax 4105
using namespace std;
ifstream fin("triplete.in");
ofstream fout("triplete.out");

int N,M,Sol;

vector <int> G[NMax];
bitset <NMax> B[NMax];

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);
        B[x][y] = B[y][x] = 1;
    }
}

void Solve()
{
    for(int i = 1 ; i <= N ; ++i)
        for(int j = 0 ; j < (int) G[i].size() ; ++j)
            for(int k = 0 ; k < (int) G[G[i][j]].size() ; ++k)
                if(B[i][ G[ G[i][j] ][ k ] ] ) Sol++;
}

void Print()
{
    fout<<Sol / 6<<"\n";
}

int main()
{
    Read();
    Solve();
    Print();

    fin.close();
    fout.close();
    return 0;
}