///!!! Prefetch Test !!!
#include <fstream>
using namespace std;

ifstream f("triplete.in");
ofstream g("triplete.out");

int N,M,i,j,r,e,d;
unsigned int a[4100][150];//b[4100][150];
unsigned int x[67000],y[67000],c[4100];
int main()
{
    f>>N>>M;
    for(i=1;i<=4096;++i)
        c[i]=1<<(i&31);
    while(M--)
    {
        f>>e>>d;if(e>d)e^=d^=e^=d;
        x[M]=e,y[M]=d;
        a[e][d>>5]|=c[d];
        //b[y[M]][x[M]>>5]|=(1<<(x[M]&31));
    }
    for(i=0;x[i];++i)
            for(j=0;(j<<5)<=N;++j)
                    r+=__builtin_popcount(a[x[i]][j]&a[y[i]][j]);
    g<<r;

    return 0;
}