/// <summary>
/// Mit Aufruf dieser Methode wird das <paramref name="SQL_Statement"/> zusammen mit den <paramref name="Parameters"/> als SQL-Abfrage an den <see cref="SQL_Server"/> gesendet.
/// </summary>
/// <param name="SQL_Statement">Der <see cref="string"/>, der die gesamte Abfrage enthält.</param>
/// <param name="Parameters">Die Parameter, die mithilfe der <see cref="string.Format(string, object[])"/>-Methode in das <paramref name="SQL_Statement"/> eingefügt werden.</param>
/// <remarks>
/// Löst folgende Events aus:
/// <list type="bullet">
/// <item>
/// <see cref="DataObjectsReceived"/>
/// </item>
/// <item>
/// <see cref="DataSetReceived"/>
/// </item>
/// <item>
/// <see cref="ErrorReceived"/>
/// </item>
/// </list>
/// </remarks>
public virtual void RunQuerry(string SQL_Statement, params string[] Parameters)
{
DQ.RunQuerry(SQL_Statement, Parameters);
}
public override int GetHashCode()
{
return(DP.GetHashCode() ^ DQ.GetHashCode() ^ Exponent.GetHashCode() ^ Modulus.GetHashCode()
^ P.GetHashCode() ^ Q.GetHashCode() ^ PublicExponent.GetHashCode() ^ QInv.GetHashCode());
}
static void Main()
{
var n = int.Parse(Console.ReadLine());
var s = Console.ReadLine();
var q = new DQ <int>();
var stack = new Stack <int>();
int RemoveAndGetFirst(int k)
{
for (int i = 0; i < k; i++)
{
stack.Push(q.PopFirst());
}
var r = q.PopFirst();
for (int i = 0; i < k; i++)
{
q.PushFirst(stack.Pop());
}
return(r);
}
int RemoveAndGetLast(int k)
{
for (int i = 0; i < k; i++)
{
stack.Push(q.PopLast());
}
var r = q.PopLast();
for (int i = 0; i < k; i++)
{
q.PushLast(stack.Pop());
}
return(r);
}
Console.SetOut(new System.IO.StreamWriter(Console.OpenStandardOutput())
{
AutoFlush = false
});
for (int i = 0; i < n; i++)
{
var c = s[i];
if (c == 'L')
{
q.PushFirst(i + 1);
}
else if (c == 'R')
{
q.PushLast(i + 1);
}
else if (c < 'D')
{
var k = c - 'A';
if (k < q.Length)
{
Console.WriteLine(RemoveAndGetFirst(k));
}
else
{
Console.WriteLine("ERROR");
}
}
else
{
var k = c - 'D';
if (k < q.Length)
{
Console.WriteLine(RemoveAndGetLast(k));
}
else
{
Console.WriteLine("ERROR");
}
}
}
Console.Out.Flush();
}
