static void Main(string[] args) { int[] mass = new int[] { 1,2,3,4,5,6,7,8,9,0,1, }; Func<int,int> func = new(GetSquare); //Console.WriteLine(mass.MostCommonElement()); mass.ActionsWithArray(func); func += GetMultiply; foreach (var item in mass) { Console.WriteLine(item); } }