#include "bits/stdc++.h" using namespace std; #define LL long long #define int LL #define PB push_back #define VI vector #define FOR(i,a,b) for(int i = (a); i <= (b); i++) #define REP(i,n) FOR(i, 0, (int)n - 1) #define PII pair #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((int)(x).size()) #define st first #define nd second template void mini(C & a4, C b4){a4 = min(a4, b4);} template void maxi(C & a4, C b4){a4 = max(a4, b4);} template void _dbg(const char * sdbg, TH h){ cerr< void _dbg(const char * sdbg, TH h, TA... a){ while(*sdbg!=',') cerr<<*sdbg++; cerr<<'='< ostream & operator<<(ostream & os, vector V){ os<<"[";for(auto vv: V) os < ostream & operator<<(ostream & os , pair P){ return os << "(" << P.st <<","<> t; while (t--) { cin >> n; cout << pref[n] << endl; } }