#include <stdio.h>
int main()
{
    try:
        int arr[5];
        int di,ac;
        float avg,sum=0;
        for(int i =0; i<5 ; i++){
            scanf("%d",&arr[i]);
        }
        scanf("%d %d" ,&di ,&ac);
        for(int i =0;i<5;i++){
            printf("%d / 5 = %d \n", arr[i],arr[i]/di);
        }
        printf("Division operation completed.\n");
        
        for(int i=2;i<3;i++){
            printf("\nElement at index %d: %d \n",ac, arr[i]);
        }
        printf("Element access operation completed.\n");
            
        for(int i=0 ; i<5 ; i++){
            sum+=arr[i];
        }
        printf("\nAverage of the array elements: %.1f\n",sum/5);
        printf("Average calculation operation completed.");
    catch(Expection as e){
        printf("Division by zero is not allowed");
    }
    return 0;
}