Y \ X
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
5000
4999
4998
4997
4996
4995
4994
4993
4992
4991
4990
4989
4988
4987
4986
4985
4984
4983
4982
4981
4980