import sys

# sys.setrecursionlimit(200005)
# sys.set_int_max_str_digits(200005)
int1 = lambda x: int(x)-1
pDB = lambda *x: print(*x, end="\n", file=sys.stderr)
p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr)
def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
def SI(): return sys.stdin.readline().rstrip()

dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
# dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)]
# inf = -1-(-1 << 31)
inf = -1-(-1 << 62)

# md = 10**9+7
md = 998244353

lim = 1024
# lim=8
n, k, x, y = LI()
aa = LI()
dp2 = [0]*lim
dp3 = [0]*lim
dp3[0] = 1
for t in range(n):
    dp1, dp2, dp3 = dp2, dp3, [0]*lim
    for s in range(lim):
        dp3[s] -= dp1[s]*(k-(t>1))%md
        for a in aa:
            dp3[s] += dp2[s ^ a]
            dp3[s] %= md
    # pDB(dp3)

ans = 0
for s in range(x, y+1):
    ans += dp3[s]
    ans %= md
print(ans)