A Crane Wedge Flies to the Sky#11412

A Crane Wedge Flies to the Sky

1 second

256 megabytes

Very easy

Given a natural number $n$ , print an image consisting of $2 n - 1$ 2n-1 rows and $n$ columns, formed by the character @ and the character <, as shown in the example.

Input

The input contains one natural number $n$ , where $n > 1$ n > 1.

Output

Print an image of size $(2 n - 1) \times n$ (2n-1)\times n.

Examples

Input example #1

Output example #1

<@@
@<@
@@<
@<@
<@@

Input example #2

Output example #2

<@@@
@<@@
@@<@
@@@<
@@<@
@<@@
<@@@

Example 1