Description

In ancient China, people wrote text vertically from right to left. Please write a program to format a given string in this ancient style.

Input Format

The first line contains a positive integer $N$, the number of characters per column. The second line contains a non-empty string of length not exceeding $1000$, ending with a newline. $1≤N≤1000$.

Output Format

Format the given string in the ancient style, with $N$ characters per column (except possibly the last column, which may have fewer than $N$ characters).

Sample

4
This is a test case

asa T
st ih
e tsi
 ce s