#include <iostream>
#include <vector>
using namespace std;

#include <atcoder/modint>
using mint = atcoder::modint998244353;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int N, M, K;
    cin >> N >> M >> K;
    vector<int> S(N), A(M), B(M);
    for (auto &x : S) cin >> x, --x;
    for (auto &x : A) cin >> x;
    for (auto &x : B) cin >> x;

    vector<mint> dpall(K + 1), dpsnxt(K + 1);
    dpall.at(0) = 1;
    vector dp(M, vector<mint>(K + 1));

    for (const int s : S) {
        const int a = A.at(s), b = B.at(s);

        for (int k = 0; k <= K; ++k) {
            if (k + a <= K) dpsnxt.at(k + a) += dpall.at(k) + dp.at(s).at(k);
            if (k + b <= K) dpsnxt.at(k + b) += dpall.at(k) + dp.at(s).at(k);
            dp.at(s).at(k) = -dpall.at(k);
            dpall.at(k) += dpsnxt.at(k);
            dpsnxt.at(k) = 0;
        }
    }
    cout << dpall.back().val() << '\n';
}