} //EndMethod public IEnumerable <int> SimpleListConcatArray() { return(SimpleListItems.Concat(ArrayItems2).Reverse()); } //EndMethod
} //EndMethod public IEnumerable <int> SimpleListConcatArray() { return(SimpleListItems.Concat(ArrayItems2).GroupBy(x => x % 10, x => x, (x, y) => y.Sum())); } //EndMethod