using System;

namespace _11.GeometryCalculator
{
    class GeometryCalculator
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int digitsSum = 0;
            string digitCombination = string.Empty;
            int upperLettersSum = 0;
            string upperLetterCombination = string.Empty;
            int lowerLettersSum = 0;
            string lowerLetterCombination = string.Empty;
            int otherSymbolsSum = 0;
            string otherSymbolCombination = string.Empty;
            for (int i = 0; i < n; i++)
            {
                char currentSymbol = char.Parse(Console.ReadLine());
                if (char.IsDigit(currentSymbol))
                {
                    digitCombination += currentSymbol;
                    digitsSum += currentSymbol;
                }
                else if (char.IsUpper(currentSymbol))
                {
                    upperLetterCombination +=currentSymbol;
                    upperLettersSum += currentSymbol;
                }
                else if (char.IsLower(currentSymbol))
                {
                    lowerLetterCombination += currentSymbol;
                    lowerLettersSum += currentSymbol;
                }
                else
                {
                    otherSymbolCombination += currentSymbol;
                    otherSymbolsSum += currentSymbol;
                }
            }
            int biggestSum = Math.Max(
                Math.Max(digitsSum, upperLettersSum),
                Math.Max(lowerLettersSum, otherSymbolsSum));
            Console.WriteLine($"Biggest ASCII sum is:{biggestSum}");

            if (biggestSum==digitsSum)
            {
                Console.WriteLine($"Combination of characters is:{digitCombination}");
            }
            else if (biggestSum==upperLettersSum)
            {
                Console.WriteLine($"Combination of characters is:{upperLetterCombination}");
            }
            else if (biggestSum==lowerLettersSum)
            {
                Console.WriteLine($"Combination of characters is:{lowerLetterCombination}");
            }
            else if (biggestSum==otherSymbolsSum)
            {
                Console.WriteLine($"Combination of characters is:{otherSymbolCombination}");
            }
        }
    }
}