n = int(input())
A = list(map(int, input().split()))
ans = 0

for i in range(30):
    tot = 0
    row = 0
    for a in A:
        if a >> i & 1:
            tot += row * (row + 1) // 2
            row = 0
        else:
            row += 1
    tot += row * (row + 1) // 2
    ans += (n * (n + 1) // 2 - tot) * (1 << i)
print(ans)