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

int N,M,Sol;

bitset <NMax> B[NMax];

void Read()
{
    fin>>N>>M;

    for(int i = 1 ; i <= M ; ++i)
    {
        int x,y;    fin>>x>>y;
        B[x][y] = 1;    B[y][x] = 1;
    }
}

void Solve()
{
    for(int i = 1 ; i <= N ; ++i)
        for(int j = i + 1 ; j <= N ; ++j)
        {
            bitset <NMax> C;

            C = (B[i] & B[j]);

            Sol += C.count();
        }
}

void Print()
{
    fout<<Sol / 3<<"\n";
}

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

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