#include <bits/stdc++.h>
#define f first
#define s second
#define m_p make_pair
#define vec vector
#define pb push_back
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define sz(x) (int)(x).size()
#define pw(x) (1LL<<(x))
#define fast_prep ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
typedef pair<int,int> pii;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
typedef unsigned long long ull;
//#define int long long
template<class T> bool umin(T &a,const T &b){return (a>b?a=b,1:0);}
template<class T> bool umax(T &a,const T &b){return (a<b?a=b,1:0);}
const int N=1e5+1;
vec<int> g[N];
vec<int> gr[2*N];
int sz[2*N];
int n;
vec<pii> vc;
int in[N],fup[N],tt=1;
vec<vec<pii>> wo;
int cm=1;
int siz[N];
void dfs1(int v,int p){
in[v]=fup[v]=tt++;
for(auto &z : g[v]){
if(z==p) continue;
// cout<<
if(in[z]){
umin(fup[v],in[z]);
if(in[z]<in[v]) vc.pb({v,z});
}
else{
vc.pb({v,z});
dfs1(z,v);
umin(fup[v],fup[z]);
if(fup[z]>=in[v]){
vec<pii> cur;
while(vc.back()!=m_p(v,z)) cur.pb(vc.back()),vc.pop_back();
cur.pb(vc.back());vc.pop_back();
wo.pb(cur);
// cout<<sz(cur)<<endl;
}
}
}
}
int dp[N];
void dfs2(int v,int p){
dp[v]=(v<=n);
// cout<<"WE "<<v<<' '<<dp[v]<<endl;
for(auto &z : gr[v]){
if(z==p) continue;
dfs2(z,v);
dp[v]+=dp[z];
}
}
ll ans=0;
void dfs3(int v,int full,int p){
if(v<=n){
for(auto &z : gr[v]){
if(z!=p){
ans-=1ll*(siz[z]-1)*(full-dp[z])*(full-dp[z]-1);
}
else{
ans-=1ll*(siz[z]-1)*(dp[v])*(dp[v]-1);
}
}
}
for(auto &z : gr[v]) {
if(z==p) continue;
dfs3(z,full,v);
}
}
void init(){
for(int i=1;i<=n;i++){
if(!in[i]){
dfs1(i,i);
if(sz(vc)) wo.pb(vc);
vc.clear();
if(!sz(wo)) continue;
for(auto &i : wo){
set<int>st;
for(auto &j : i) st.insert(j.f),st.insert(j.s);
siz[n+cm]=sz(st);
for(auto &j : st) gr[n+cm].pb(j),gr[j].pb(n+cm);
++cm;
}
wo.clear();
// if(!sz(wo)) continue;
// cout<<"WO "<<endl;
dfs2(n+cm-1,n+cm-1);
dfs3(n+cm-1,dp[n+cm-1],-1);
ans+=1ll*dp[n+cm-1]*(dp[n+cm-1]-1)*(dp[n+cm-1]-2);
}
}
}
signed main(){
fast_prep;
int m;
cin>>n>>m;
for(int i=0;i<m;i++){
int v,u;
cin>>v>>u;
g[v].pb(u);g[u].pb(v);
}
init();
cout<<ans;
return 0;
}
/*
abbaaa
cbbbbccbbccbbbbbbc
(((((((()))())))))
5 5
4 2
2 5
4 1
2 1
4 5
*/
