Triangles

Painting rectangles is fun, but can you draw a triangle?

Given a single number n, you are asked to draw a triangle of height and width of n that is filled with * symbols.

Input

Output

1

*

2

*
**

7

*
**
***
****
*****
******
*******

Constraints

Time limit: 2 seconds

Memory limit: 512 MB

Output limit: 1 MB

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