/in/foo.c: In function 'main':
/in/foo.c:17:25: warning: iteration 2 invokes undefined behavior [-Waggressive-loop-optimizations]
   17 |                         printf("%d",b[i][j]);
      |                         ^~~~~~~~~~~~~~~~~~~~
/in/foo.c:16:30: note: within this loop
   16 |                 for(int j=0;j<3;j++){
      |                             ~^~