#include<bits/stdc++.h>
#include "transfer.h"
using namespace std;
vector<int> get_attachment(vector<int> source) {
vector<int> ret;
for(int i=0; i<source.size(); i++) ret.push_back(source[i]);
for(int i=0; i<source.size(); i++) ret.push_back(source[i]);
return ret;
}
vector<int> retrieve(vector<int> data) {
vector<int> ans;
int n=data.size()/3;
for(int i=0; i<n; i++) {
int one=0, zero=0;
if(data[i] == 0) zero++;
else one++;
if(data[i+n] == 0) zero++;
else one++;
if(data[i+2*n] == 0) zero++;
else one++;
if(one > zero) ans.push_back(1);
else ans.push_back(0);
}
return ans;
}
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