Most confusing problem

What is incremented by these oparators...address or value?? Plz come with explanation.

++(*y).....value/address?
*++y.....value/address?
++*y.....value/address?
*y++.....value/address?
(*y)++.....value/address?

Let y is a pointer.

 

( )>++>* precedence and associativity left to right.
therefore
1)value
2)address
3)address
4)address
5)value

 

Code:

#include <stdio.h>

int main()
{
   int x[] = {10,20,30,40, 50}; 
   int *y;
   y= x; 
   printf("%3d%3d%3d%3d%3d",++(*y),*++y,++*y,*y++,(*y)++);
   return 0;
}

O/P: 31 30 21 11 10

please explain this code to support your answer.