pyramid 2

import static java.lang.System.out;

import java.util.stream.IntStream;
class SomeClass {
  public static void main(final String[] args) {
    IntStream.range(1, Integer.parseInt(args[0])).forEach(
        i -> {
          IntStream.range(0, i).forEach(x -> out.print('*'));
          out.println();
        });
  }
}