<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
</head>
<body>
</body>
<script>
var num=prompt();
for(var i=0;i<num;i++){
for(var m=0;m<num-i-1;m++){
document.write(" ");
}
for(var j=0;j<i;j++){
document.write("*");
document.write(" ");
}
document.write("<br>");
}
</script>
</html>