Y \ X
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
12720
12719
12718
12717
12716
12715
12714
12713
12712
12711
12710
12709
12708
12707
12706
12705
12704
12703
12702
12701
12700