Every evening, little Ivica sends secret messages to little Marica through e-mail. Knowing Ivica's e-letter travels unguarded through the network on its way to Marica's e-mailbox, they have decided to encrypt every message using the following algorithm:

• Suppose Ivica's message consists of ~N~ characters.
• Ivica must first find a matrix consisting of ~R~ rows and ~C~ columns such that ~R \le C~ and ~R \times C = N~. If there is more than one such matrix, Ivica chooses the one with the most rows.
• Ivica writes his message into the matrix in row-major order. In other words, he writes the first segment of the message into the first row, the second segment into the second row and so on.
• The message he sends to Marica is the matrix read in column-major order.

Marica has grown tired of spending her precious time deciphering Ivica's messages, so you must write a program to do it for her.

Input Specification

The input contains the received message, a string of lowercase letters of the English alphabet (with no spaces).

The number of letters will be between ~1~ and ~100~.

Output Specification

Output the original (decrypted) message.

Sample Input 1

bok

Sample Output 1

bok

Sample Input 2

koaski

Sample Output 2

kakosi

Sample Input 3

boudonuimilcbsai

Sample Output 3

bombonisuuladici

Ivica wants to send the message bombonisuuladici containing ~16~ letters. He can use a ~1 \times 16~, ~2 \times 8~ or ~4 \times 4~ matrix. Of these, the ~4 \times 4~ has the most rows. When the message is written into it, the matrix looks like this: