//prints a pine tree of height x plus something

//--------------------------
//the parameter of the code, it must be positive

x = 15;

//-----------------
//the actual code


//first build the branches

i = 1;

while i <= x do

  a = x - i;

  while a > 0 do 
    print " ";
    a = a - 1;
  endwhile

  b = 2*i - 1;

  while b > 0 do
    print "*";
    b = b - 1;
  endwhile

  print newline;

  i = i + 1;
endwhile


//now build the base of the tree

i = 1;

while i <= x/3 do

  a = x - (x/4);

  while a > 0 do 
    print " ";
    a = a - 1;
  endwhile

  b = 2*(x/4) - 1;

  while b > 0 do
    print "+";
    b = b - 1;
  endwhile

  print newline;

  i = i + 1;
endwhile