#include <iostream>
#include <cstdio>
#include <vector>
 
int main(void)
{
    // C++の標準入出力ストリームが、Cの入出力と同期しないようにする
    std::ios::sync_with_stdio(false);
 
    int N;
    std::cin >> N;
 
    std::vector<int> arr(N);
    for(int n = 0; n < N; ++n) {
        if (n % 2) std::cin >> arr[n];
        else scanf("%d", &arr[n]);
    }
 
    for(int n = 0; n < N; ++n) {
        std::cout << arr[n] << " ";
    }
    std::cout << std::endl;
 
    return 0;
}
 

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