import sys
input = sys.stdin.readline

N=int(input())

X=[[0,0] for i in range(20)]

for i in range(N):
    for j in range(20):
        if i& (1<<j) != 0:
            X[j][1]+=1
        else:
            X[j][0]+=1

A=list(map(int,input().split()))

ANS=0
mod=998244353

for i in range(N):
    a=A[i]
    for j in range(20):
        if i & (1<<j) != 0:
            ANS+=a*X[j][0] * (1<<j)
        else:
            ANS+=a*X[j][1] * (1<<j)

    ANS%=mod

    #print(ANS)

print(ANS%mod)