#include <iostream>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>

static const int MOD = 998244353;
using ll = long long;
using u32 = unsigned;
using u64 = unsigned long long;
using namespace std;

template<class T> constexpr T INF = ::numeric_limits<T>::max() / 32 * 15 + 208;

template <u32 M>
struct modint {
    u32 val;
public:
    static modint raw(int v) { modint x; x.val = v; return x; }
    modint() : val(0) {}
    template <class T>
    modint(T v) { ll x = (ll)(v%(ll)(M)); if (x < 0) x += M; val = u32(x); }
    modint(bool v) { val = ((unsigned int)(v) % M); }
    modint& operator++() { val++; if (val == M) val = 0; return *this; }
    modint& operator--() { if (val == 0) val = M; val--; return *this; }
    modint operator++(int) { modint result = *this; ++*this; return result; }
    modint operator--(int) { modint result = *this; --*this; return result; }
    modint& operator+=(const modint& b) { val += b.val; if (val >= M) val -= M; return *this; }
    modint& operator-=(const modint& b) { val -= b.val; if (val >= M) val += M; return *this; }
    modint& operator*=(const modint& b) { u64 z = val; z *= b.val; val = (u32)(z % M); return *this; }
    modint& operator/=(const modint& b) { return *this = *this * b.inv(); }
    modint operator+() const { return *this; }
    modint operator-() const { return modint() - *this; }
    modint pow(long long n) const { modint x = *this, r = 1; while (n) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; }
    modint inv() const { return pow(M-2); }
    friend modint operator+(const modint& a, const modint& b) { return modint(a) += b; }
    friend modint operator-(const modint& a, const modint& b) { return modint(a) -= b; }
    friend modint operator*(const modint& a, const modint& b) { return modint(a) *= b; }
    friend modint operator/(const modint& a, const modint& b) { return modint(a) /= b; }
    friend bool operator==(const modint& a, const modint& b) { return a.val == b.val; }
    friend bool operator!=(const modint& a, const modint& b) { return a.val != b.val; }
};
using mint = modint<MOD>;

template<class T>
void fwht(vector<T> &v){
    int sz = 1;
    while(sz < v.size()) sz <<= 1;
    v.resize(sz);
    for (int i = 1; i < sz; i <<= 1) {
        for (int j = 0; j < sz; j += (i<<1)) {
            for (int k = 0; k < i; ++k) {
                T x = v[j+k], y = v[j+k+i];
                v[j+k] = (x+y), v[j+k+i] = (x-y);
            }
        }
    }
}

template<class T>
void ifwht(vector<T> &v){
    int sz = 1;
    while(sz < v.size()) sz <<= 1;
    v.resize(sz);
    for (int i = 1; i < sz; i <<= 1) {
        for (int j = 0; j < sz; j += (i<<1)) {
            for (int k = 0; k < i; ++k) {
                T x = v[j+k], y = v[j+k+i];
                v[j+k] = (x+y)*499122177, v[j+k+i] = (x-y)*499122177;
            }
        }
    }
}

int main() {
    int n, k, x, y;
    scanf("%d %d %d %d", &n, &k, &x, &y);
    vector<mint> a(1024);
    for (int i = 0; i < k; ++i) {
        int b; scanf("%d", &b);
        a[b] = 1;
    }
    fwht(a);
    vector<vector<mint>> dp(n+1, vector<mint>(1024));
    dp[0][0] = 1;
    fwht(dp[0]);
    for (int i = 1; i <= n; ++i) {
        dp[i] = dp[i-1];
        for (int j = 0; j < 1024; ++j) dp[i][j] *= a[j];
        if(i >= 2) for (int j = 0; j < 1024; ++j) dp[i][j] -= dp[i-2][j]*k;
        if(i >= 3) for (int j = 0; j < 1024; ++j) dp[i][j] += dp[i-2][j];
    }
    ifwht(dp.back());
    mint ans = 0;
    for (int i = x; i <= min(y, 1023); ++i) {
        ans += dp.back()[i];
    }
    printf("%d\n", ans.val);
    return 0;
}