What is wrong?

Question

int age=Convert.ToInt32(Console.ReadLine());
int height= Convert.ToInt32(Console.ReadLine());

Answer 1

#Jamie l am trying to input 2 values,but sololearn shows me:unhendled expection :(

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
int age=Convert.ToInt32(Console.ReadLine());
int height= Convert.ToInt32(Console.ReadLine());
}
}
}

Answer 2

for example: 5 6

Answer 3

any two number

Answer 4

Thank you,and please tell me how mark people in comments on sololearn