#include<fstream>
#include<vector>
#include<cstring>
using namespace std;
ifstream f("triplete.in");
ofstream g("triplete.out");
vector<int>v[105];
int viz[4105];
int n,m,x,y,i,j,k,rez;
int main()
{
    f>>n>>m;
    for(i=1;i<=m;i++)
    {
        f>>x>>y;
        v[x].push_back(y);
        v[y].push_back(x);
    }
    for(i=1;i<=n;i++)
    {
        memset(viz,0,sizeof(viz));
        for(j=0;j<v[i].size();j++)
          viz[v[i][j]]=1;
        for(j=0;j<v[i].size();j++)
          for(k=0;k<v[v[i][j]].size();k++)
            if(viz[v[v[i][j]][k]]==1)
              rez++;
    }
    g<<rez/6;
    return 0;
}