#include "hieroglyphs.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
#define pb push_back
bool eq(vi a, vi b) {
  int as = a.size(), bs = b.size();
  
  if(as != bs) return false;
  
  for(int i = 0; i < as; i++) {
    
    if(a[i]!=b[i]) return false;
  }
  
  return true;
}
vi ucs(vi a, vi b) {
  if(eq(a, b)) return a;
  
  vi empty;
  
  empty.pb(-1);
  
  return empty;
}
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