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();
}
}
}
```
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