#!/usr/bin/env python3
#
# No.1304 あなたは基本が何か知っていますか？私は知っています．
#
import sys, os, math

def read_ints(): return list(map(int, input().split()))

MOD = 998244353

n, k, x, y = read_ints()
a = read_ints()

m, mx = 1, max(a)
while m <= mx: m <<= 1

c = [[0] * m for _ in range(m)]
c[0][0] = 1

for _ in range(n):
	d = [[0] * m for _ in range(m)]
	for u in a:
		for i in range(m):
			if i == u: continue
			for j in range(m):
				d[u][j ^ u] = (d[u][j ^ u] + c[i][j]) % MOD
	c = d

ans = 0
for i in range(x, min(y + 1, m)):
	for u in a:
		ans = (ans + c[u][i]) % MOD

print(ans)