Alice studies symbolic graphics. First, she wanted to draw a right triangle with legs equal to 5. Write a
triangle_down() routine for Alice to draw this triangle.
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Then, Alice wants to draw an inverted right triangle with legs equal to 5. Write Alice a subroutine
triangle_up() to draw this triangle.
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After some thought, Alice decided that she could use your subroutines to draw the next shape.
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Write a subroutine
star_figure() that would display this figure using the above subroutines.
The main program should contain only one line - subroutine call
star_figure().
Examples
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