insertion sort

#include <iostream>
using namespace std;
void insertionSort(int n, int * arr) 
{
 int temp,i,j,k;
 for(i=1;i<n;i++)
 {
 	
 	j=i;
 	while(j>0 && arr[j]<arr[j-1])
 	{
 		temp=arr[j];
 		arr[j]=arr[j-1];
 		arr[j-1]=temp;
 		j--;
 		 for(k=0;k<n;k++)
                  cout<<arr[k]<<" ";
              cout<<endl;
 	}
 }
}

int main()
{
    int n;
    cin>>n;
    int arr[n];
    for(int i=0;i<n;i++)
        {
        cin>>arr[i];
        }
    
   insertionSort(n,arr);
   return 0;
}

this is my code for insertion sort.
sample input:
1 5 3 6 8 4
output:
1 5 3 6 8 4
1 3 5 6 8 4
1 3 4 5 6 8

i am new to programming and in a learning stage. i want to print the above output but its not giving the first line output.
what is missing in my code??