/in/foo.cc: In function 'int main()':
/in/foo.cc:16:30: warning: iteration 3 invokes undefined behavior [-Waggressive-loop-optimizations]
   16 |                         h=a[i]/16;
      |                           ~~~^
/in/foo.cc:12:22: note: within this loop
   12 |         for(int i=1;i<=8;i++)
      |                     ~^~~