package com.example.demo.simple; import java.util.Scanner; public class Main_39 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int nextInt = sc.nextInt(); int startNum = nextInt * (nextInt - 1) + 1; for (int i = 0; i < nextInt; i++) { System.out.print((i == nextInt - 1)? startNum : startNum + "+"); startNum = startNum + 2; } System.out.println(); } }