500 3
1155 0
994 1
544 0
694 1
740 1
517 0
1315 0
1127 0
462 0
794 1
1345 0
688 0
1178 0
637 0
628 0
975 0
989 0
927 0
789 0
1356 0
1126 0
923 0
647 0
1144 0
1440 0
1449 0