using System using System Collections Generic using System Linq using

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        public class CStack
        {
            private int [] M;
            private int [] L;
            private const int defaultCapacity = 10;
            private int size;

            public CStack()
            { 
                this.size = 0;
                this.M = new int [defaultCapacity];
                this.L = new int[defaultCapacity];
            }

            public int Max()
            {
                int ma = this.M[0], id = 0;
                for (int i = 1; i < defaultCapacity; ++i)
                {
                    if (ma < this.M[i])
                    {
                        ma = this.M[i];
                        id = i;
                    }
                }
                return id;
            }

            public void Next()
            {
                int ma = 0, id = Max(), id2 = 0;
                for (int i = 0; i < defaultCapacity; ++i)
                {
                    for (int j = 0; j < defaultCapacity; ++j)
                    {
                        if (ma < this.M[j] && ma < this.M[id])
                        {
                            ma = this.M[j];
                            id2 = j;
                        }
                    }
                    this.L[id] = id2;
                    ma = 0;
                    id = id2;
                }
            }

            public int Pop() 
            {
                return this.M[--this.size];
            }

            public void Push(int newElement)
            {
                this.M[this.size++] = newElement;
            }
        }
        static void Main(string[] args)
        {
            int []input = {9, 7, 11, 10, 5, 0};
            CStack M = new CStack();
            for (int i = 0; i < 6; ++i)
            {
                M.Push(input[i]);
            }
            M.Next();
        }
    }
}