using System;
using System.Collections.Generic;
using System.Linq;
class MainClass {
static void Main() {
Random rnd = new Random();
int x = rnd.Next(1, 100);
Console.WriteLine(x);
int sum = 0;
for(int i = 1; i <= x; i++){
sum += i;
}
Console.WriteLine("---------");
Console.WriteLine(sum);
}
}