What Does This Code Do? What does the following app do?

```
// Solution: Printing.cs
using System;

class Printing
{
static void Main()
{
for (int i = 1; i <= 10; ++i)
{
for (int j = 1; j <= 5; ++j)
{
Console.Write('@');
}

Console.WriteLine();
}
}
}
```