very very thanks dear friends

#include<stdio.h> #include<conio.h> void main() { int a[]={0,1,2,3,4,5,6,7,8,9,10,11,12}; int num=0,i=0; clrscr(); num=a[++i+a[++i]]+a[++i]; printf("%d",num); getch(); } how it produce output as 9 can u explain parsing of a[++i+a[++i]]+a[++i]