#include<bits/stdc++.h>
#include<atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i,n)for (int i = 0; i < int(n); ++i)
#define rrep(i,n)for (int i = int(n)-1; i >= 0; --i)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template<class T> void chmax(T& a, const T& b) {a = max(a, b);}
template<class T> void chmin(T& a, const T& b) {a = min(a, b);}
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

using mint = modint998244353;
mint op(mint x, mint y) {return x + y;}
mint e() {return mint::raw(0);}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m, k;
    cin >> n >> m >> k;
    segtree<mint, op, e> seg(k);
    seg.set(0, 1);
    int b = 0;
    rep(i, n) {
        mint s = seg.all_prod();
        b = (b - 1 + k) % k;
        seg.set(b, s);
    }
    mint ans = mint::raw(2).pow(n) - seg.all_prod();
    cout << ans.val() << endl;
}