Program to sort the elements of an array using insertion sort

Program
Time Complexity: O(n²)

#include <stdio.h>
int main()
{
    printf("***************************************************************");
    printf("\n***************************************************************");
    printf("\n** WAP to sort the elements of an array using insertion sort **");
    printf("\n**                 Created by Sheetal Garg                   **");
    printf("\n**                     Assistant Professor                   **");
    printf("\n**                     Phone No:9467863365                   **");
    printf("\n***************************************************************");
    printf("\n***************************************************************\n");
    int a[10],n,i,j,key;
    printf("enter the no. of elements in array");
    scanf("%d",&n);
    printf("enter array elements");
    for(i=0;i<n;i++)
    scanf("%d",&a[i]);
    for(i=1;i<n;i++)
    {
        key=a[i];
        j=i-1;
        while(j>=0 && key<a[j])
        {
            a[j+1]=a[j];
            j=j-1;
        }
        a[j+1]=key;
    }
    printf("array after sorting is \n");
    for(i=0;i<n;i++)
    printf("%d \t",a[i]);
    return 0;
}

Output

*****************************************************************
*****************************************************************
**   WAP to sort the elements of an array using insertion sort **
**                     Created by Sheetal Garg                 **
**                       Assistant Professor                   **
**                       Phone No:9467863365                   **
*****************************************************************
*****************************************************************
enter the no. of elements in array
6
enter array elements12
32
21
10
9
8
array after sorting is 
8       9       10      12      21      32