Problem:
Bubble Sort

Write a program of the Bubble Sort algorithm which sorts a sequence A in ascending order. The algorithm should be based on the following pseudocode:

BubbleSort(A)
1 for i = 0 to A.length-1
2 for j = A.length-1 downto i+1
3 if A[j] < A[j-1]
4 swap A[j] and A[j-1]

Note that, indices for array elements are based on 0-origin.

Your program should also print the number of swap operations defined in line 4 of the pseudocode.

Input

The first line of the input includes an integer N, the number of elements in the sequence.

In the second line, N elements of the sequence are given separated by spaces characters.

Output

The output consists of 2 lines.

In the first line, please print the sorted sequence. Two contiguous elements of the sequence should be separated by a space character.

In the second line, please print the number of swap operations.

Constraints

1 ≤ N ≤ 100

Sample Input 1

5
5 3 2 4 1

Sample Output 1

1 2 3 4 5
8

Sample Input 2

6
5 2 4 6 1 3

Sample Output 2

1 2 3 4 5 6
9

Solution in JAVA (judge verdict: WA: Presentation Error)

import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        int N;
        int num[];
        String line;

        Scanner scan=new Scanner(System.in);

        line=scan.next();
        N=Integer.parseInt(line);

        if(N<1||100<N){
            return;
        }
        
        num=new int[N];

        for(int i=0;i<N;i++){
            num[i]=Integer.parseInt(scan.next());
            if(num[i]<0||num[i]>100){
                return;
            }
        }

        //バブルソート
        int swap_num=0;
        for(int i=0;i<N-1;i++){
            for(int j=N-1;j>i;j--){
                if(num[j]<num[j-1]){
                    int temp=num[j];
                    num[j]=num[j-1];
                    num[j-1]=temp;

                    swap_num++;
                }
            }
        }

        for(int i=0;i<N;i++){
            System.out.print(num[i]+" ");
        }
        System.out.println();
        System.out.println(swap_num);
    }
}