#!/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)]; s = [0] * m
c[0][0] = s[0] = 1

for _ in range(n):
	d = [[0] * m for _ in range(m)]
	z = [0] * m
	for u in a:
		for i in range(m):
			d[i ^ u][u] = (d[i ^ u][u] + s[i] - c[i][u] + MOD) % MOD
			z[i ^ u] += d[i ^ u][u]
	c = d; s = z

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

print(ans)