#include <iostream>
#include <string>
using namespace std;
 
int main() {
    cout << "START\n";
 
    int n;
    cin >> n;
 
    int x;
    string z = "";
    string a = "";
 
    for (int i = 0; i < n; ++i) {
        cin >> x;
        if (i % 2 == 0) {
            z += to_string(x) + " ";
        } else {
            a += to_string(x) + " ";
        }
    }
 
    cout << z << endl;
    cout << a << endl;
 
    cout << "KONIEC\n";
 
    return 0;
}
 

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