#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 210000;
int n, m, dep[N], high[N], k, sub[N], ans;
vector<int> g[N], dt[N], dh[N], tr[N];
void dfs(int v, int d = 1) {
high[v] = dep[v] = d;
for (int u : g[v]) {
if (dep[u]) {
dh[v].push_back(u);
high[v] = min(high[v], dep[u]);
continue;
}
dt[v].push_back(u);
dfs(u, d + 1);
high[v] = min(high[v], high[u]);
}
}
void build(int v, int t = 1) {
tr[n + t].push_back(v);
tr[v].push_back(n + t);
for (int u : dt[v]) {
if (high[u] < dep[v])
build(u, t);
else {
k++;
tr[n + k].push_back(v);
tr[v].push_back(n + k);
build(u, k);
}
}
}
void solve(int v, int p = -1) {
sub[v] = (v <= n);
for (int u : tr[v]) if (u != p) {
solve(u, v);
sub[v] += sub[u];
}
int mul = 0, sum = 0;
for (int u : tr[v]) {
int cur = (u != p ? sub[u] : n - sub[v]);
mul += sum * cur;
sum += cur;
}
if (v > n)
mul *= ((int) tr[v].size() - 2);
ans += mul;
}
int32_t main() {
ios::sync_with_stdio(0); cin.tie(0);
cin >> n >> m;
if (n < 3) {
cout << 0;
return 0;
}
for (int i = 1; i <= m; i++) {
int u, v; cin >> u >> v;
g[u].push_back(v);
g[v].push_back(u);
}
k = 1;
dfs(1);
build(1);
solve(1);
cout << 2 * ans;
}
