#include <bits/stdc++.h>
//#include "grader.cpp"
#include "books.h"
#define ll long long
#define vi vector<int>
#define pb push_back
#define vl vector<ll>
using namespace std;
//
// --- Sample implementation for the task books ---
//
// To compile this program with the sample grader, place:
// books.h books_sample.cpp sample_grader.cpp
// in a single folder and run:
// g++ books_sample.cpp sample_grader.cpp
// in this folder.
//
void solve(int N, int K, long long A, int S) {
if(S == N){
vl arr(N+1);
for(int i = 1; i <= N; i++){
arr[i] = skim(i);
}
ll sum = 0;
for(int i = 1; i <= K; i++)
sum += arr[i];
if(sum >= A && sum <= 2 * A){
vi ans;
for(int i = 1; i <= K; i++) ans.pb(i);
answer(ans);
}
for(int i = K + 1; i <= N; i++){
sum -= arr[i-K];
sum += arr[i];
if(sum >= A && sum <= 2 * A){
vi ans;
for(int j = i-K; j <= i; j++) ans.pb(j);
answer(ans);
}
}
}
else
return;
}
