public static long arrayManipulation(int n, List> queries) { long max=0; List> arr = new List>();

    List<long> ft = Enumerable.Repeat((long)0, n).ToList();        

    arr.Add(ft);

    for(int row=0;row<queries.Count;row++)
    {
        arr.Add(ft);

        for(int col=0;col<n;col++)
        {   
            var a=queries[row][0]-1;
            var b=queries[row][1]-1;
            var k=queries[row][2];

            if(col>=a && col<=b)
            {
                long calc=arr[row][col]+k;
                arr[row+1][col]=calc;
                max=calc>max?calc:max;
            }
            else{
                arr[row+1][col]=arr[row][col];
            }
        }

        Console.WriteLine(string.Join(" ",arr[row+1]));
    }

    return max;
}

}