题目描述

blablabla

样例

#include <iostream>
#include <cstdio>
#include <cmath>
#include <iomanip>

using namespace std;

int main()
{
    cout << fixed;
    cout << setprecision(0);
    int n;
    while(cin >> n, n)
    {
        for (int i = 1; i <= n; i ++ )
        {
            for (int j = 1; j <= n; j ++ )
            {
                cout << pow(2, i + j - 2) << ' ';
            }
            cout << endl;
        }
        if (n) cout << endl;
    }
    return 0;
}