Repeat Bracketed Block

Version: Phuoc Hung OJ Extended

Problem Statement

Given a string $s$ and a nonnegative integer $n$, first construct a block consisting of an opening square bracket [, all of $s$, and a closing square bracket ]. Then print $n$ consecutive copies of the entire block, with no separators.

Even if $s$ is empty, a block is []. If $n=0$, the result is an empty string.

Input

The first line contains $s$, which may be empty. The second contains integer $n$.

Output

Print $n$ copies of block [s] on one line. Print an empty line when $n=0$.

Subtasks

• Subtask 1 (100 points): $0\le |s|\le40$ Unicode characters; $0\le n\le20$.

Examples

Example 1

Input

ab
3

Output

[ab][ab][ab]

Explanation. The block is [ab]; three entire copies give [ab][ab][ab].

Example 2

Input

2

Output

[][]

Explanation. Because $s$ is empty, each block is []; two blocks give [][].

Example 3

Input

X
0

Output

Explanation. With $n=0$, no block is printed and the output is empty.