#include<iostream>
#include<cstring>
using namespace std;
int main()
{
char a[200];
char b[200][200];
int n,x,k,p,q,m,i,j,w;
cin>>n;
while(n!=0)
{
cin>>a;
k=0;
w=strlen(a);
x=w/n;
for(i=0;i<x;i++)
{
for(j=0;j<n;j++)
{
b[i][j]=a[k];
k++;
}
i++;
for(m=j;m>=0;m--)
{
b[i][m]=a[k];
k++;
}
}
for(i=0;i<x;i++)
{
for(j=0;j<n;j++)
{
cout<<b[i][j];
}
cout<<"\n";
}
cout<<"\n";
cin>>n;
}
return 0;
}
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