#include <bits/stdc++.h> using namespace std; #define ll long long #define vi vector<long long> #define all(x) x.begin(), x.end() #define endl "\n" #define pr pair<ll, ll> #define ff first #define ss second void solution(); int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); solution(); return 0; } const int N = 1000200; const int K = 24; ll n, s, k; ll a[N], v[N]; int nxt[N], BL[N][K]; pr pos(int i) { pr ans; ll p = 1, q = i; while (p <= q) { ll mid = (p+q)/2; if (a[i]-a[mid] <= k) { ans.ff = mid; q = mid-1; } else p = mid+1; } p = i, q = n; while (p <= q) { ll mid = (p + q)/2; if (a[mid]-a[i] <= k) { ans.ss = mid; p = mid+1; } else q = mid-1; } return ans; } ll cost(pr m) { return v[m.ss] - v[m.ff-1]; } pr mq(pr p1, pr p2) { if (p1.ff > p2.ff) return p1; return p2; } int jump(int i) { for (int j = K-1; j >= 0; j--) { if ((s-1) & (1 << j)) i = BL[i][j]; } return i; } void solution() { iota(nxt, nxt+N, 0); cin >> n >> s >> k; for (int i = 2; i <= n; i++) {cin >> a[i]; a[i] += a[i-1];} for (int i = 1; i <= n; i++) {cin >> v[i]; v[i] += v[i-1];} map<ll, pr> hm; for (int i = n; i >= 1; i--) { pr m = pos(i); if (hm.count(m.ss+1)) { nxt[i] = hm[m.ss+1].ss; } // else if (hm.count(m.ss)) { // nxt[i] = hm[m.ss].ss; // } // hm[i] = mq(hm[i], {m.ss, i}); hm[m.ff] = mq(hm[m.ff], {m.ss, i}); } for (int j = 0; j < K; j++) { for (int i = 1; i <= n; i++) { if (j == 0) {BL[i][j] = nxt[i]; continue;} BL[i][j] = BL[BL[i][j-1]][j-1]; } } ll b = 0, mx = 0; for (int i = 1; i <= n; i++) { int j = jump(i); ll c = cost({pos(i).ff, pos(j).ss}); if (mx < c) { b = i; mx = c; } } vi ans; for (int i = 0; i < s; i++) { ans.push_back(b); b = nxt[b]; } ans.erase(unique(all(ans)), ans.end()); cout << ans.size() << endl; for (auto val : ans) cout << val << " "; }