#include "souvenirs.h"
#include "bits/stdc++.h"
#include <utility>
#include <vector>
using namespace std;
void buy_souvenirs(int N, long long P0) {
  // std::pair<std::vector<int>, long long> res = transaction(3);
  for(int i = 0; i < N; i++) {
    for(int j = 0; j < i; j++) {
      // cout << N - i - 1 << "\n";
      transaction(N - i);
    }
  }
  return;
}
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