Bloody Types

import java.util.HashMap;
import java.util.Scanner;
import java.util.function.BiConsumer;

public class BloodyTypes {
    static String group(String a) {
        return "" + a.charAt(0) + a.charAt(a.length() - 1);
        //     "" +   ^^^^^ this is a character
    }
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int N = Integer.parseInt(scanner.nextLine());
        HashMap<String, Integer> mp = new HashMap<String, Integer>();
        // Blood Type => # of people
        for (int i = 0; i < N; i++) {
            String line = scanner.nextLine();
            String[] s = line.split(" ");
            int many = mp.getOrDefault(group(s[2]), 0);
            mp.put(group(s[2]), many + 1);
        }

        BiConsumer<String, Integer> print = (String key, Integer value) -> {
            System.out.println(key + ": " + value);
        };
        mp.forEach(print);

        String query = scanner.nextLine();
        int result = mp.getOrDefault(group(query), 0);
        System.out.println("My beautiful result: " + result);

        // for (String key: mp.keySet()) {
        //     Integer value = mp.get(key);
        //     System.out.println(key + ": " + value);
        // }
    }
}