#include <iostream>
#include <cmath>
#include <string>
using namespace std;
 
int tablica[100000000];
 
int main()
{
    int n, suma = 0;
    cin >> n;
    int pierwszy[n];
    for (int i = 0; i < n; i++) {
        cin >> pierwszy[i];
        for (int j = suma; j < suma + pierwszy[i]; j++) {
            cin >> tablica[j];
        }
        suma += pierwszy[i];
    }
    int asd = 0;
    int bvd;
    for (int j = 0; j < n; j++) {
        bvd += pierwszy[j];
        for (int i = bvd - 1; i >= bvd - pierwszy[j]; i--) {
            cout << tablica[i] << " ";
        }
        cout << endl;
    }
}
 

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