Thanks for the help. It is not working: data range :0-999999

Data sample:

123000
123001
123004
123005
123004
123004
123008
123008
123008
123008
246599
246700
246999
246999
246999
246999
246999
246888
246881
246999
357001
357888
357999
357999
357999
357999
357999
357999
357999
357999

Expect data result from the script:

123000 1
123001 1
123004 3
123005 1
123008 4
246599 1
246700 1
246881 1
246888 1
246999 6
357001 1
357888 1
357999 8


Thanks!