public static void Main() { int[][] testMatrix = { new[] {21, 24, 3, 0}, new[] {-1, 23, 0, 11}, new[] {-20, 90, 21, 2} }; var matrix = new Matrix(testMatrix); matrix.Sort(); matrix.GetNotNullColumns(); var testArray = new double[] { 10, -2, -23, 23, 23, -2, 3, -2, 222 }; Arrays.SumPositiveElements(testArray); Arrays.MultiplyMinMaxRange(testArray); Arrays.SortDesc(testArray); var strings = new Strings(Console.ReadLine()); strings.IsParenthesesConcur(); strings.PrintLongestWord(); strings.RemoveLatinWords(); Console.Read(); }