package yukicoder.wa; import java.util.Arrays; import java.util.HashSet; import java.util.Scanner; import java.util.Set; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int x = sc.nextInt(); sc.nextLine(); int count = 0; String[] a = sc.nextLine().split(" "); //System.out.println(Arrays.toString(a)); int[] num = new int[n]; Set num_ = new HashSet<>(); for (int i = 0; i < n; i++) { num[i] = Integer.parseInt(a[i]); // num_.add(sc.nextInt()); } for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { if (num[i] + num[j] == x) { count++; } } } for (Integer i : num_) { System.out.println(i); } System.out.println(count); } }