#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
using namespace std;
long long read(){
	long long x=0,f=1;char ch=getchar();
	while(!isdigit(ch))
	{if(ch=='-') f=-1;ch=getchar();}
	while(isdigit(ch)){x=x*10+ch-48;ch=getchar();}
	return x*f;
}
void write(long long x){
    if(x<0) putchar('-'),x=-x;
    if(x>9) write(x/10);
    putchar(x%10+'0');
}
const int N=1e5+10;
int n,m;
vector<int>g0[N<<1],g1[N<<1],g2[N<<1],g3[N<<1];
map<pair<int,int>,int>mp,mp2;
ll ans;
int main(){
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	n=read();m=read();
	for(int i=1;i<=m;i++){
		int x=read(),y=read();
		g0[x].push_back(y);
		g0[y].push_back(x);
		g2[x].push_back(y);
		g2[y].push_back(x);
		mp[make_pair(x,y)]=i+n;
		mp[make_pair(y,x)]=i+n;
	}
	for(int x=1;x<=n;x++){
		for(auto y:g0[x]){
			if(g0[x].size()<g0[y].size()||(g0[x].size()==g0[y].size()&&x<y)){
				//printf("g1 %d %d\n",x,y);
				g1[x].push_back(y);
			}
		}
	}
	for(int x=1,u;x<=n;x++){
		for(auto y:g1[x]){
			for(auto z:g1[y]){
				if(u=mp[pii(x,z)]){
					g2[y].push_back(u);
					g2[u].push_back(y);
				}
			}
		}
	}
	for(int x=1;x<=n+m;x++){
		for(auto y:g2[x]){
			if(g2[x].size()<g2[y].size()||(g2[x].size()==g2[y].size()&&x<y)){
				//printf("add %d %d\n",x,y);
				g3[x].push_back(y);
				mp2[pii(x,y)]=mp2[pii(y,x)]=1;
			}
		}
	}
	for(int x=1;x<=n+m;x++){
		for(auto y:g3[x]){
			for(auto z:g3[y]){
				if(!mp2[pii(x,z)])continue;
				int cnt=(x>n)+(y>n)+(z>n);
				if(cnt==1){
					ans++;
					//printf("(%d %d %d)\n",x,y,z);
				}
			}
		}
	}
	write(ans);puts("");
	return 0;
}