// Author: Anikait Prasar
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
pair<vector<int>, ll> transaction(ll M);
void buy_souvenirs(int n, ll p0) {
    if(n==2) {
        transaction(p0-1);
        return;
    }
}
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