#include<bits/stdc++.h>
//#define int long long
using namespace std;
inline int read()
{
   int x=0,f=1;char ch=getchar();
   while (ch<'0'||ch>'9'){if (ch=='-') f=-1;ch=getchar();}
   while (ch>='0'&&ch<='9'){x=(x<<3)+(x<<1)+ch-48;ch=getchar();}
   return x*f;
}
void write(int x)
{
   if(x<0)putchar('-'),x=-x;
   if(x<10)putchar(x+'0');
   else write(x/10),putchar(x%10+'0');
}
const int N=60;
const int mod=1e9+7;
bool fl[N][N];
int n,m;
vector<int>g[N];
int ans;
bool fg[N][N][N];
bool pd(int a,int b,int c,int d){
	if(fl[a][b]&&fl[b][c]&&fl[c][d]&&fl[d][a])return 1;
	if(fl[a][b]&&fl[b][d]&&fl[d][c]&&fl[c][a])return 1;
	if(fl[a][c]&&fl[c][b]&&fl[b][d]&&fl[d][a])return 1;
	if(fl[a][c]&&fl[c][d]&&fl[d][b]&&fl[b][a])return 1;
	if(fl[a][d]&&fl[d][b]&&fl[b][c]&&fl[c][a])return 1;
	if(fl[a][d]&&fl[d][c]&&fl[c][b]&&fl[b][a])return 1;
	return 0;
}
signed main(){
	freopen("rec.in","r",stdin);
	freopen("rec.out","w",stdout);
	n=read(),m=read();
	for(int i=1;i<=m;i++){
		int u=read(),v=read();
		g[u].push_back(v);
		g[v].push_back(u);
		fl[u][v]=fl[v][u]=1;
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			for(int k=0;k<n;k++){
				if(fl[i][j]&&fl[j][k]&&fl[k][i])fg[i][j][k]=fg[i][k][j]=fg[j][i][k]=fg[j][k][i]=fg[k][i][j]=fg[k][j][i]=1;
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			for(int k=j+1;k<n;k++){
				if(fg[i][j][k])continue;
				for(int l=k+1;l<=n;l++){
					if(fg[i][j][l]||fg[i][k][l]||fg[j][k][l])continue;			
					if(pd(i,j,k,l))ans++;
				}
			}
		}
	}
	cout<<ans<<"\n";
    return 0;
}