#include <bits/stdc++.h>
using namespace std;
#define int long long
#ifdef LOCAL
#include "debug.h"
#else
#define dbg(...) 42
#endif
constexpr int N = 3e5 + 1;
int cnt[N];
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, q;
cin >> n >> q;
for (int i = 0; i < n; i++) {
int x;
cin >> x;
cnt[x]++;
}
while (q--) {
int l, r;
cin >> l >> r;
}
vector<int> a;
for (int i = 1; i < N; i++) {
if (cnt[i] > 0) {
a.push_back(cnt[i]);
}
}
sort(a.rbegin(), a.rend());
n = a.size();
deque<int> b;
for (int i = 0; i < n; i++) {
if (i % 2 == 0) {
b.push_back(a[i]);
} else {
b.push_front(a[i]);
}
}
int res = 0;
for (int s = 0; s < n; s++) {
for (int i = 0; i + s < n; i++) {
int j = i + s;
if (i == j) {
res += (b[i] * (b[i] - 1) / 2 + b[i]) * (s + 1);
} else {
res += b[i] * b[j] * (s + 1);
}
}
}
cout << res << '\n';
return 0;
}
