Triangles

Drawing a triangle made of stars (*) of any given size is not hard. For example, a triangle of size 5 looks like this (5 stars tall and 5 stars wide):

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Given several sizes, draw a triangle of each size.

Each line of input contains a single positive integer $n$ ($1 \le n \le 100$). The last line of input contains $0$. For each non-zero integer, draw a triangle of that size.

Output a triangle for each size, in order. Each triangle is wider toward the bottom. There are no blank lines between triangles.