TwoSum.java

importjava.util.*;
importjava.io.*;

classMain {

publicstaticStringTwoSum(int[] arr) {
StringBuilderoutput = newStringBuilder();
for (inti = 1; i < arr.length; i++) {
for (intj = i + 1; j < arr.length; j++) {
if (arr[i] + arr[j] == arr[0]) {
if (output.length() > 0) {
output.append(" ");
 }
output.append(arr[i]).append(",").append(arr[j]);
 }
 }
 }
returnoutput.length() == 0 ? "-1" : output.toString();
 }

publicstaticvoidmain (String[] args) {
// keep this function call here
Scanners = newScanner(System.in);
System.out.print(TwoSum(s.nextLine())); 
 }
}