#include<bits/stdc++.h>
#define int long long
using namespace std;
int ans,edge[60][60];
signed main()
{
	//freopen("rec.in","r",stdin);
	//freopen("rec.out","w",stdout);
	int n,m,u,v;
	cin>>n>>m;
	for(int i=1;i<=m;i++)
	{
		cin>>u>>v;
		edge[u][v]=edge[v][u]=1;
	}
	for(int i=0;i<n;i++)
	{
		for(int j=0;j<n;j++)
		{
			for(int k=0;k<n;k++)
			{
				for(int l=0;l<n;l++)
				{
					if(edge[i][j]&&edge[j][k]&&edge[k][l]&&edge[l][i]&&!edge[i][k]&&!edge[j][l]&&i!=j&&i!=k&&i!=l&&j!=k&&j!=l&&k!=l)
						ans++;
				}
			}
		}
	}
	cout<<ans/8;
    return 0;
}