N=int(input())
#N,A,B=map(int,input().split())
A=list(map(int, input().split()))
ans=0
for i in range(30):
  D=[]
  for a in A:
    if (a&(1<<i)):
      D.append(1)
    else:
      D.append(0)
  B=[]
  now=0
  for d in D:
    if d==0:
      now+=1 
    else:
      if now!=0:
        B.append(now)
      now=0
  if now!=0:
    B.append(now)
  c=N*(N+1)//2 
  for b in B:
    c-=b*(b+1)//2 
  ans+=pow(2,i)*c
print(ans)