N = int(input())
A = list(map(int, input().split()))
maxa = max(A)
nb = maxa.bit_length()

X = [[0] * nb for _ in range(N)]
for i, a in enumerate(A):
    j = 0
    while a > 0:
        if a & 1:
            X[i][j] = 1
        a >>= 1
        j += 1

tmp = 1
ans = 0
for i in range(nb):
    tmp2 = N
    for j in reversed(range(N)):
        if X[j][i] == 1:
            tmp2 = j
        ans += tmp * (N - tmp2)
    tmp *= 2

print(ans)