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

namespace CIRCLE
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = Console.ReadLine().Trim().Split(' ').Select(int.Parse).ToArray();
            int N = arr[0];
            int K = arr[1];
            int result = 0;
            int currentposition = 0;
            int del = 0;
            List<int> list = new List<int>();
            List<int> list2 = new List<int>();


            for (int i=0; i<N; i++)
            {
                int a = int.Parse(Console.ReadLine());
                list.Add(a);
            }

            for(int i=0; i<list.Count;i++)
            {
                list2.Add(i);
            }


            int b = list.Count;


            while(list.Count>1)
            {
                if (list.Count == b)
                {

                    result = K + currentposition;
                }
                else
                {

                    result = del + currentposition;
                }
                while(result>list.Count)
                {

                    result -= list.Count;
                }
                del = list[result - 1];

                currentposition = result - 1;
                list2.Remove(list2[currentposition]);
                list.RemoveAt(currentposition);


            }
            //Console.WriteLine(String.Join("",list));
            Console.WriteLine(list2[0]+1);
        }
    }
}