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How to Match and Exclude for exercise 02
I am stuck in exercise 2. So far I am able to match but couldn't exclude numbers 4.
Here is what I was trying:
1 a 2 a 3 a 4 a 5 a 8 a 9 b 4 c 4 E
Please any help would be appreciated.
Very late answer but
works as well and is the simplest solution I can think of.