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

namespace TestConsole {
    class Program {
        static void Main(string[] args) {
            int[] data = { 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 6, 9, 12, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 2, 3, 4 };
            var rez = SplitArray(data);
            foreach (int[] intarr in rez) {
                Console.Write("[");
                foreach (int item in intarr) {
                    Console.Write(item+", ");
                }
                Console.Write("]" + Environment.NewLine);
            }
            Console.ReadLine();
        }

        static List<int[]> SplitArray (int[] arr) {
            var rez = new List<int[]>();
            if (arr.Length==1) {
                rez.Add(arr);
                return rez;
            }
            int size = 0;
            for (int i = 1; i < arr.Length; i++) {
                size++;
                if (arr[i] < arr[i - 1]) {
                    rez.Add(arr.Skip(i - size).Take(size).ToArray());
                    size = 0;
                }
            }
            return rez;
        }
    }
}