2439 별찍기-2

const input = require('fs').readFileSync('dev/stdin').toString();
const num = Number(input);
let result = '';
for (let i = 0; i < num; i++) {
  for (let j = 0; j < num - i - 1; j++) {
    result += ' ';
  }
  for (let k = 0; k <= i; k++) {
    result += '*';
  }
  result += '\n';
}
console.log(result);