#include<stdio.h>

main()
{

   int x = 25;

   printf ("x is originally set to: %d\n\n", x);

   printf ("x += 5;  -  result: %d\n", x += 5);
   printf ("x -= 7;  -  result: %d\n", x -= 7);
   printf ("x *= 3;  -  result: %d\n", x *= 3);
   printf ("x /= 13;  -  result: %d\n", x /= 13);
   printf ("x %= 2;  -  result: %d\n", x %= 2);

}