What is the output(#34)?

Question

#include <stdio.h>

int main()

{

int *ptr1, *ptr2, i = 10, j = 20;

ptr1 = &i;

*ptr1 = 15;

ptr2 = &j;

*ptr2 = 5;

ptr2 = ptr1;

*ptr2 = 25;

ptr2 = &j;

*ptr2 += *ptr1;

 printf("Val = %d\n", j);

return 0;

}

 

References: C From Theory