#include <iostream>
#include <cstdio>
#include <algorithm>
using namespace std;

// 方法1：开新数组搬过去
int main(){
    int n[25],N[25];
    int j = 19;
    for (int i = 0; i < 20;i++){
        cin >> n[i];
        N[j--] = n[i];
    }
    for (int i = 0;i < 20; i++){
        printf("N[%d] = %d\n",i,N[i]);
    }
    return 0;
}
// 方法2： reserve
int main(){
    int N[25];
    for (int i = 0; i < 20;i++){
        cin >> N[i];
        reverse(N,N+20);
    }
    for (int i = 0; i < 20;i++){
        printf("N[%d] = %d\n",i,N[i]);
    }
    return 0;
}