try
{
int num = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i <= num; i++)
{
for (int j = 0; j < 2i-1; j++)
{
Console.Write("");
}
Console.WriteLine(" ");
}
}
catch
{
}
Console.ReadKey();
try
{
int num = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i <= num; i++)
{
for (int j = 0; j < 2i-1; j++)
{
Console.Write("");
}
Console.WriteLine(" ");
}
}
catch
{
}
Console.ReadKey();
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