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 Ruby (judge verdict: Runtime Error)

array = Array.new
count = 0
n = gets.chomp.to_i
n.times do
  array.push(gets.chomp.to_i)
end
 
i = 0
while i<n
  j = n-1
  while j > i
    if array[j] < array[j-1]
      array[j],array[j-1] = array[j-1],array[j]
      count = count+1
    end  
    j = j-1
  end
  i=i+1
end
 
i = 0
while i < n 
  print array[i] 
  if i+1 != n
  print " "
  end
  i = i+1
end
print "\n"
print count
print "\n"