#include<fstream>
using namespace std;
ifstream F("triplete.in");
ofstream G("triplete.out");
int n,m,a[65537],b[65537],i,j,t,c[4097][130],r,l;
int main()
{
    for(F>>n>>m,i=1;i<=m;++i) {
        F>>a[i]>>b[i];
        if(a[i]>b[i])
            swap(a[i],b[i]);
        c[a[i]][b[i]/32]+=(1<<(b[i]%32));
    }
    for(i=1;i<=m;++i)
        for(j=0;j<=n/32;++j,t+=l)
            for(l=0,r=c[a[i]][j]&c[b[i]][j];r;++l,r&=(r-1));
    G<<t;
    return 0;
}