#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define mins(a, b) (a = min(a, b))
#define SZ(x) int(x.size())
const int MXN = 1e5+5;
int n, m;
int h[MXN], low[MXN], timer;
bool cut[MXN], CUT[MXN<<1];
vector<int> g[MXN], stk;
vector<vector<int>> comp;
void bcc(int v, int p=0) {
low[v] = h[v] = ++timer;
stk.push_back(v);
for(int u : g[v]) if(u!=p) {
if(h[u]) mins(low[v], h[u]);
else {
bcc(u, v);
mins(low[v], low[u]);
if(low[u]>=h[v]) {
cut[v] |= h[v]>1 || h[u]>2;
comp.push_back({v});
while(comp.back().back()!=u) {
comp.back().push_back(stk.back());
stk.pop_back();
}
}
}
}
}
int N, id[MXN], cnt[MXN<<1];
vector<int> G[MXN<<1];
void block_cut_tree() {
for(int i=1; i<=n; i++) {
if(!h[i]) {
bcc(i);
if(g[i].empty()) {
comp.push_back({i});
stk.pop_back();
}
}
if(cut[i]) {
cnt[id[i]=++N]++;
CUT[N] = 1;
}
}
for(auto &cmp : comp) {
N++;
for(int v : cmp)
if(cut[v])
G[id[v]].push_back(N),
G[N].push_back(id[v]);
else cnt[id[v]=N]++;
}
}
int sz[MXN<<1], par[MXN<<1];
vector<int> vec;
bool vis[MXN<<1];
void dfs(int v) {
vec.push_back(v);
vis[v] = 1;
sz[v] = cnt[v];
for(int u : G[v])
if(!vis[u])
par[u] = v,
dfs(u),
sz[v] += sz[u];
}
int32_t main() {
cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
cin >> n >> m;
for(int i=1,u,v; i<=m; i++) {
cin >> u >> v;
g[u].push_back(v);
g[v].push_back(u);
}
block_cut_tree();
ll ans = 0;
for(int i=1; i<=N; i++)
if(!vis[i]) {
dfs(i);
for(int v : vec) {
ll tmp=0;
int cur=sz[i]-sz[v];
for(int u : G[v]) if(u!=par[v]) {
tmp += 1ll*cur*sz[u];
cur += sz[u];
}
ans += 2ll*cnt[v]*tmp;
if(CUT[v]) {
for(int u : G[v]) {
ll c = cnt[u]+SZ(G[u])-1;
ans += 1ll*c*(c-1);
}
}
else {
ans += 2ll*cnt[v]*(cnt[v]-1)*(sz[i]-cnt[v]);
ans += 1ll*cnt[v]*(cnt[v]-1)*(cnt[v]-2);
}
}
vec.clear();
}
cout << ans << '\n';
return 0;
}
