N = int(input())
A = list(map(int, input().split()))
INF = 10**9

import numba
@numba.jit
def calc(N, A):
    ans = 0
    for i in range(N-1):
        for j in range(i+1, N):
            ans += A[i] ^ A[j]

    ans = ans % (INF + 7)
    return ans

print(calc(N, A))