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I would like to print out a table which has the sequence in descending
alphabetical order in the first column as follows:-

1A
1B
1C

2A
2B
2C

3A
...etc until

41C

Thereafter , I would like the sequence to go:-
42A
42B
42C
42D
42E
42F

43A
....etc until
54F

Could anyone tell me how to arrange this , please ?


B.N.