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#include <iostream>
#include <vector>

using namespace std;

typedef vector<int> vi;
typedef long long int ll;

int bitc(ll x) {
	int res = 0;
	while (x) { if (x & 1) res++; x >>= 1; }
	return res;
}

int main() {
	ios_base::sync_with_stdio(0);

	int n; cin >> n;
	const ll mask = 1L << n;
	vi a(n); for (int i = 0; i < n; i++) cin >> a[i];
	vector<vector<ll>> res(n+1, vector<ll>(n*(n+1) / 2, 0));

	for (ll i = 1; i < mask; i++) {
		int b = bitc(i);
		int inv = 0;

		for (int j = 0; j < n; j++) {
			if (!(i & (1L << j))) continue;
			for (int k = j + 1; k < n; k++) {
				if ((i & (1L << k)) && a[j] > a[k]) inv++;
			}
		}

		res[b][inv]++;
	}

	for (int k = 1; k <= n; k++) {
		for (uint i = 0; i < res[k].size(); i++) {
			if (res[k][i] > 0) {
				cout << i << ' ' << res[k][i] << endl;
				break;
			}
		}
	}

	return 0;
}