Basic concept of array

Question

What would be the values of the array "a" in the following program?

 

#include <stdio.h>

int main()

{

int i, a[3] = {4, 2, 0}, b[3] = {2, 3, 4};

for(i = 0; i < 3; i++)

a[b[i]-a[2-i]]++;

return 0;

}

 

References: C From Theory