In this task can be specified 2 shows at the input

if first string containts 2 Number, input -> 2'st view, else 1'st view.

for example:
string[] d = Console.ReadLine().Trim().Split(' ');
if (d.Length == 1)
{ Algo 1=>2
}
else
{
  Algo 2=>1
}

It's obvious :)

can't understand

thanks, you are right

I had the same problem but found funny bug :)

read(...) gets Crash #2
readln(...) gets Accepted