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for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 1+2*i; j++)
{
Console.Write("*");
}
Console.WriteLine();
}
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3 - i; j++)
{
Console.Write("*");
}
Console.WriteLine();
}
Console.ReadLine();