#include<iostream>
#include<string>
using namespace std;
int n;
int main()
{
    cin>>n;
    char a[1003][1003];
    string b;
    cin.get();//读取回车；
    getline(cin,b);//读取带空格的字符串
  
    int lenth  = b.length();
    int hang = lenth/n;
    if(lenth%n)hang++;
  
    int p = 0;
    for(int j = hang-1;j>=0;j--)
    {
        for(int i = 0;i < n;i++){
            if(b[p])a[i][j] = b[p];
            else a[i][j] = ' ';
            p++;
        }
    }
    for(int i = 0;i < n;i++)
    {
        for(int j = 0;j < hang;j++)
        {
            cout<<a[i][j];
        }
        puts("");
    }
    return 0;
}