2439

https://www.acmicpc.net/problem/2439

const fs= require('fs');

const input = Number(fs.readFileSync('/dev/stdin'))

	for(i=1;i<=input;i++){
        let b="*".repeat(i);   
        if(input-i===0){
        	console.log(b);
        	return 0;
        	
        }
        let a = " ".repeat(input-i-1);
        	console.log(a,b);
	}