#if defined(__GNUC__)
#include <bits/stdc++.h>
// __GNUC__
#else
#include "bits/stdc++.h"
#endif
using namespace std;

#define int long long

#if defined(__GNUC__)
#define __int32 __int32_t
#endif // __GNUC__

#define itn __int32
#define REP(i, n) for(itn (i) = 0; (i) < (n); (i)++)
#define REP2(i, x, n) for(itn (i) = x; (i) < (n); (i)++)
#define ALL(x) (x).begin(), (x).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define SORT(x) sort(ALL(x))
#define RSORT(x, T) sort(ALL(x), greater<T>())
#define REVERCE(x) reverce(ALL(x))

#define INT_POW(x, y) [](int a, int b) -> int {int c = a; REP(i, b - 1){c *= a;} return c;}(x, y)
#define INT_POWM(x, y, m) [](int a, int b, int m) -> int {int c = a; REP(i, b - 1){c *= a; c %= m;} return c;}(x, y, m)

itn main() {
	ios::sync_with_stdio(false);

	int n;

	cin >> n;

	vector<int> a(n);

	REP(i, n) {
		cin >> a[i];
	}

	const int kMod = 1'000'000'007;
	int res = 0;

	REP(i, n - 1) {
		REP2(j, i + 1, n) {
			res += (a[i] ^ a[j]);
			res %= kMod;
		}
	}

	cout << res;

	return 0;
}
