sum.js

var i = 2;

function numberFunction(number) {
	var sum = 0;
	if(number<1){
		console.log("Enter a positive whole number greater than 0");
	}else{
		for (count = number; count>0; count--) {
			sum = sum + count;
			if(count != 1){
				process.stdout.write(count + "+");
			}else{
				process.stdout.write(count + "=");				
			}
		}
		console.log(sum);
	}
}

for (i; i < process.argv.length; i++) {
	numberFunction(Number(process.argv[i]));
}