java15:

import java.io.; import java.lang.reflect.; import java.util.*;

class Add { public void add(int... numbers) { int sum = 0; StringBuilder sb = new StringBuilder(); for (int i = 0; i < numbers.length; i++) { sum += numbers[i]; sb.append(numbers[i]); if (i != numbers.length - 1) { sb.append("+"); } } sb.append("=").append(sum); System.out.println(sb); } }

public class Solution { public static void main(String[] args) { try { Scanner sc = new Scanner(System.in); int n1 = sc.nextInt(); int n2 = sc.nextInt(); int n3 = sc.nextInt(); int n4 = sc.nextInt(); int n5 = sc.nextInt(); int n6 = sc.nextInt(); Add ob = new Add(); ob.add(n1, n2); ob.add(n1, n2, n3); ob.add(n1, n2, n3, n4, n5); ob.add(n1, n2, n3, n4, n5, n6);

        // Reflection check (required by HackerRank)
        Method[] methods = Add.class.getDeclaredMethods();
        Set<String> set = new HashSet<>();
        boolean overload = false;
        for (Method method : methods) {
            if (set.contains(method.getName())) {
                overload = true;
                break;
            }
            set.add(method.getName());
        }
        if (overload) {
            throw new Exception("Overloading not allowed");
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}