15
 1000 1000 
 3 0 632 0 0 426 0
 3 312 1000 0 1000 0 942
 7 348 724 1000 482 1000 1000 312 1000 0 942 0 0 760 0
 3 404 0 1000 0 1000 776
 4 520 890 0 446 0 0 302 0
 7 322 456 0 654 0 184 246 0 1000 0 1000 1000 690 1000
 3 0 184 0 0 246 0
 4 348 724 760 0 1000 0 1000 482
 6 520 890 302 0 520 0 614 1000 0 1000 0 446
 5 426 810 0 632 426 0 1000 0 1000 218
 5 812 848 746 1000 614 1000 520 0 824 0
 4 322 456 690 1000 0 1000 0 654
 5 1000 776 1000 1000 0 1000 0 0 404 0
 5 426 810 1000 218 1000 1000 0 1000 0 632
 5 812 848 824 0 1000 0 1000 1000 746 1000