Y \ X
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
12870
12869
12868
12867
12866
12865
12864
12863
12862
12861
12860
12859
12858
12857
12856
12855
12854
12853
12852
12851
12850