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How to get the first 3 digit of a variable ?
How to get the first 3 digit of a variable ?

I have a variable receiving 3 types of results: 4-digit number, 3-digit number, and NA

For example

4412
4564
334
NA
7677

What I want is to get the first 3 digit as below

441
456
334
.
767

Could you please let me know how to make it? I think of generate a new variable but I am not sure how to make it.

Warm regards.

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How to get the first 3 digit of a variable ?

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