#include<stdio.h>
#include<bitset>
using namespace std;
bitset<4096> adj[4096];
struct T
{
    int x,y;
} a[65536];
int main()
{
    freopen("triplete.in","r",stdin);
    freopen("triplete.out","w",stdout);
    int n,m;
    scanf("%d%d",&n,&m);
    for(int i=0;i<m;i++)
    {
        scanf("%d%d",&a[i].x,&a[i].y);
        a[i].x--;a[i].y--;
        adj[a[i].x][a[i].y]=1;
        adj[a[i].y][a[i].y]=1;
    }
    int ans=0;
    for(int i=0;i<m;i++)
        ans+=(adj[a[i].x]&adj[a[i].y]).count();
    printf("%d\n",ans/3);
    return 0;
}