#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
#define vi vector<int>
#define pb emplace_back
#define fi first
#define se second
#define all(n) (n).begin(),(n).end()
#define mem(n,m) memset(n,m,sizeof(n))
#define IOS ios::sync_with_stdio(0), cin.tie(0)
#define dbg(...) cerr<<#__VA_ARGS__<<" = ";_do(__VA_ARGS__);
template<typename A> void _do(A x){cerr<<x<<'\n';}
template<typename A,typename ...B> void _do(A x,B ...y){cerr<<x<<", ";_do(y...);}
ll n,m;
vi E[100005];
ll siz[100005], ans=0;
bool vis[100005];
void dfs(int x,int p){
vis[x] = 1;
siz[x] = 1;
for(auto i:E[x]){
if(i==p) continue;
dfs(i,x);
siz[x] += siz[i];
}
}
void dfs2(int x,int p,int anc){
vis[x] = 1;
for(auto i:E[x]){
if(i==p) continue;
dfs2(i,x,anc);
ans += siz[i] * (siz[anc]-siz[i]-1);
}
ans += (siz[x]-1) * (siz[anc]-siz[x]);
}
signed main(){
IOS;
cin>>n>>m;
for(int i=1,a,b;i<=m;i++){
cin>>a>>b;
E[a].pb(b);
E[b].pb(a);
}
for(int i=1;i<=n;i++) if(!vis[i]) dfs(i,0);
mem(vis,0);
for(int i=1;i<=n;i++) if(!vis[i]) dfs2(i,0,i);
cout<<ans<<'\n';
}
