- import std.typecons;
  import std.math;
  /*
- 
-     Given a positive integer n, you have to make a pile of n levels of stones.
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+ Given a positive integer n, you have to make a pile of n levels of stones.
-     The first level has n stones.
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+ The first level has n stones.
-     The number of stones in the next level is:
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+ The number of stones in the next level is:
-         - the next odd number if n is odd.
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+     - the next odd number if n is odd.
-         - the next even number if n is even.
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+     - the next even number if n is even.
-     Return the number of stones in each level in an array, where element at index
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+ Return the number of stones in each level in an array, where element at index
-     i represents the number of stones in the level (i+1).
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+ i represents the number of stones in the level (i+1).
- 
-     Examples:
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+ Examples:
-     >>> make_a_pile(3L)
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+ >>> make_a_pile(3L)
-     [3L, 5L, 7L]
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+ [3L, 5L, 7L]
-     
  */
  long[] make_a_pile(long n)