Consider the following C program.

#include

int main (  )

{

                static int a [ ] = {10, 20, 30, 40, 50} ;

                static int *p [ ] = {a, a+3, a+4, a+1, a+2} ;

                int **ptr = p;

                ptr++;

                printf(“%d, **ptr) ;

The output of the program is _________