https://www.acmicpc.net/problem/2441
const fs=require('fs')
n=parseInt(fs.readFileSync(0).toString())
for(i=n;i>=1;i--){
for(k=0;k<n-i;k++){
process.stdout.write(" ")
}
for(j=0;j<i;j++){
process.stdout.write("*")
}
console.log()
}