import sys
readline=sys.stdin.readline

N,L,R=map(int,readline().split())
A=list(map(int,readline().split()))
bit_lst=[set() for bit in range(61)]
for i in range(1,N):
    for bit in range(60,-1,-1):
        if A[i-1]>>bit&1 and not A[i]>>bit&1:
            bit_lst[bit].add(1)
            break
        elif not A[i-1]>>bit&1 and A[i]>>bit&1:
            bit_lst[bit].add(0)
            break
for bit in range(61):
    if len(bit_lst[bit])>=2:
        ans=0
        break
else:
    for bit in range(61):
        if bit_lst[bit]=={0}:
            bit_lst[bit]=0
        elif bit_lst[bit]=={1}:
            bit_lst[bit]=1
        else:
            bit_lst[bit]=None
    def cnt(N):
        retu=0
        for bit in range(61):
            if N>>bit&1 and bit_lst[bit]!=1:
                for i in range(bit+1,61):
                    if bit_lst[i]!=None and bit_lst[i]!=N>>bit&1:
                        break
                else:
                    retu+=pow(2,bit_lst[:bit].count(None))
        return retu
    ans=cnt(R+1)-cnt(L)
print(ans)