import sys

sys.setrecursionlimit(10 ** 6)
input = sys.stdin.readline
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")

def main():
    max_k = 60
    n, l, r = map(int, input().split())
    aa = list(map(int, input().split()))
    #for a in aa:
        #print(format(a, "b"))

    aadig = [[] for _ in range(max_k)]
    for a in aa:
        for j in range(max_k - 1, -1, -1):
            aadig[max_k - 1 - j].append((a >> j) & 1)
    #p2D(aadig)
    ans_dig = [-1] * max_k
    sep = set([n])
    for k in range(max_k):
        nsep = set()
        pi = 0
        flag_k = -1
        for si in sorted(sep):
            flag_sep = -1
            st = aadig[k][pi]
            for i in range(pi, si):
                d = aadig[k][i]
                if flag_sep == d:
                    print(0)
                    exit()
                if d == 1 - st:
                    flag_sep = st
                    st = d
                    nsep.add(i)
            if flag_sep > -1:
                if flag_k > -1 and flag_k != flag_sep:
                    print(0)
                    exit()
                else:
                    flag_k = flag_sep
            pi = si
        else:
            sep |= nsep
            ans_dig[k] = flag_k
    #print(format(l, "b"))
    #print(format(r, "b"))
    #print(ans_dig)
    dp = [[[0] * 2 for _ in range(2)] for _ in range(max_k + 1)]
    dp[0][0][0] = 1
    for k in range(max_k):
        lk = l >> (max_k - 1 - k) & 1
        rk = r >> (max_k - 1 - k) & 1
        for b in range(2):
            for s in range(2):
                pre = dp[k][b][s]
                if pre == 0: continue
                nb, ns = b, s
                if ans_dig[k] != 1 and (s == 1 or lk == 0):
                    if rk == 1: nb = 1
                    dp[k + 1][nb][ns] += pre
                nb = b
                if ans_dig[k] != 0 and (b == 1 or rk == 1):
                    if lk == 0: ns = 1
                    dp[k + 1][nb][ns] += pre
    print(sum(dp[max_k][0]) + sum(dp[max_k][1]))
    #p2D(dp)

main()