#include "souvenirs.h"
#include <utility>
#include <vector>
#include <bits/stdc++.h>
void buy_souvenirs(int N, long long P0) {
	
	if (N > 2) return;
	std::pair<std::vector<int>, long long> res = transaction(P0 - 1);
	
	return;
}
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