ASCII Combination

import java.util.Scanner;

public class P13_ASCII {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = Integer.parseInt(scanner.nextLine());

        int digitsSum = 0;
        String digitsCombinations = "";

        int upperSum = 0;
        String upperCombinations = "";

        int lowerSum = 0;
        String lowerCombinations = "";

        int otherSum = 0;
        String otherCombinations = "";

        for (int i = 0; i < n ; i++) {
            char symbol = scanner.nextLine().charAt(0);
            int value = (int) symbol;

            if (value >= 48 && value <= 57){
                digitsSum += value;
                digitsCombinations += symbol;
            } else if (value >= 65 && value <= 90){
                upperSum += value;
                upperCombinations += symbol;
            } else if (value >= 97 && value <= 122){
                lowerCombinations += symbol;
                lowerSum += value;
            } else {
                otherSum += value;
                otherCombinations += symbol;
            }

        }

        int max1 = Math.max(digitsSum,upperSum);
        int max2 = Math.max(lowerSum,otherSum);
        int maxResult = Math.max(max1,max2);

        if (maxResult == digitsSum){
            System.out.printf("Biggest ASCII sum is:%d\n", maxResult);
            System.out.printf("Combination of characters is:%s", digitsCombinations);
        } else if (maxResult == upperSum){
            System.out.printf("Biggest ASCII sum is:%d\n", maxResult);
            System.out.printf("Combination of characters is:%s", upperCombinations);
        } else if (maxResult == lowerSum){
            System.out.printf("Biggest ASCII sum is:%d\n", maxResult);
            System.out.printf("Combination of characters is:%s", lowerCombinations);
        } else if (maxResult == otherSum){
            System.out.printf("Biggest ASCII sum is:%d\n", maxResult);
            System.out.printf("Combination of characters is:%s", otherCombinations);
        }

    }
}