Y \ X
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
9981
9982
9983
9984
9985
9986
9987
9988
9989
9990
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
3980
3979
3978
3977
3976
3975
3974
3973
3972
3971
3970
3969
3968
3967
3966
3965
3964
3963
3962
3961
3960