using System;

namespace RosetaCode
{
	class MainClass
	{
		public static void Main (string[] args)
		{
			int[,] list = new int[18,19];
			string input = @"55
	                        94 48
	                       95 30 96
	                     77 71 26 67
	                    97 13 76 38 45
	                  07 36 79 16 37 68
	                 48 07 09 18 70 26 06
	               18 72 79 46 59 79 29 90
	              20 76 87 11 32 07 07 49 18
	            27 83 58 35 71 11 25 57 29 85
	           14 64 36 96 27 11 58 56 92 18 55
	         02 90 03 60 48 49 41 46 33 36 47 23
	        92 50 48 02 36 59 42 79 72 20 82 77 42
	      56 78 38 80 39 75 02 71 66 66 01 03 55 72
	     44 25 67 84 71 67 11 61 40 57 58 89 40 56 36
	   85 32 25 85 57 48 84 35 47 62 17 01 01 99 89 52
	  06 71 28 75 94 48 37 10 23 51 06 48 53 18 74 98 15
	27 02 92 23 08 71 76 84 15 52 92 63 81 10 44 10 69 93";
			var charArray = input.Split ('\n');

			for (int i=0; i < charArray.Length; i++) {
				var numArr = charArray[i].Trim().Split(' ');

				for (int j = 0; j<numArr.Length; j++)
				{
					int number = Convert.ToInt32 (numArr[j]);
					list [i, j] = number;
				}
			}

			for (int i = 16; i >= 0; i--) {
				for (int j = 0; j < 18; j++) {
					list[i,j] = Math.Max(list[i, j] + list[i+1, j], list[i,j] + list[i+1, j+1]);
				}
			}
			Console.WriteLine (string.Format("Maximum total: {0}", list [0, 0]));
		}
	}
}