18
 1000 1000 
 3 746 0 1000 0 1000 774
 5 586 756 1000 676 1000 1000 0 1000 0 874
 4 96 986 62 1000 0 1000 0 878
 6 580 156 0 366 0 182 580 0 1000 0 1000 122
 4 212 288 0 400 0 0 378 0
 5 580 156 1000 122 1000 1000 0 1000 0 366
 5 96 986 0 878 0 742 114 1000 62 1000
 5 754 958 1000 892 1000 1000 620 1000 810 882
 5 580 852 0 606 0 0 746 0 1000 774
 6 586 756 0 874 0 716 496 0 1000 0 1000 676
 7 398 330 708 1000 114 1000 0 742 0 0 1000 0 1000 558
 4 810 712 300 0 1000 0 1000 434
 5 580 852 1000 774 1000 1000 0 1000 0 606
 7 810 712 1000 434 1000 764 620 1000 0 1000 0 0 300 0
 4 754 958 810 882 1000 764 1000 892
 4 398 330 1000 558 1000 1000 708 1000
 3 0 182 0 0 580 0
 5 212 288 378 0 496 0 0 716 0 400