def Run_Length(lst):
    run_length=[]
    if lst:
        prev=lst[0]
        cnt=1
        for x in lst[1:]:
            if x==prev:
                cnt+=1
            else:
                run_length.append((prev,cnt))
                prev=x
                cnt=1
        run_length.append((prev,cnt))
    return run_length

N=int(input())
A=list(map(int,input().split()))
ans=0
for b in range(30):
    cnt=N*(N+1)//2
    for a,c in Run_Length([a>>b&1 for a in A]):
        if a==0:
            cnt-=c*(c+1)//2
    ans+=cnt<<b
print(ans)