def main():
    MOD=10**9+7
    N=int(input())
    A=list(map(lambda x: int(x), input().split()))
    ans = 0
    for i in range(N-1):
        for j in range(i, N):
            ans += (A[i] ^ A[j])
            ans = ans % MOD
    print(ans % MOD)

if __name__ == '__main__':
    main()