# include <cstdio>
# include <bitset>
# define DIM 4100
# define DIM1 66000
using namespace std;
bitset<DIM> b[DIM],a;
int st[DIM1],dr[DIM1],n,m,x,y,i,sol;
int main () {
    freopen("triplete.in","r",stdin);
    freopen("triplete.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(i=1;i<=m;i++){
        scanf("%d%d",&st[i],&dr[i]);
        if(st[i]>dr[i])
            swap(st[i],dr[i]);
        b[st[i]][dr[i]]=1;
    }
    for(i=1;i<=m;i++){
        a=((b[st[i]])&(b[dr[i]]));
        sol+=a.count();
    }
    printf("%d\n",sol);
    return 0;
}