#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
using pr = pair<int, int>;
const int INF = 1e9+7, MOD = 1e9+9;
int valid(int n, int inputSeq[]) {
vector<int> a(n);
for (int i = 0; i < n; i++) a[i] = inputSeq[i];
int minpos = min_element(a.begin(), a.end()) - a.begin();
if (a[minpos] > n) return 1;
int start = ((minpos - a[minpos] + 1) % n + n) % n;
int cur = 1;
bool good = 1;
multiset<int> broke;
for (int i = start; i < n; i++) {
if (a[i] > n) {
broke.insert(a[i]);
}
if (a[i] > n || cur == a[i]) {
cur++;
}
else {
good = 0;
break;
}
}
for (int i = 0; i < start; i++) {
if (a[i] > n || cur == a[i]) {
cur++;
}
else {
good = 0;
break;
}
}
int prev = n;
for (auto i : broke) {
if (prev + 1 != i) {
good = 0;
break;
}
else {
prev++;
}
}
return good;
}
int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
return -2;
}
int countReplacement(int n, int inputSeq[]){
return -3;
}
