You're asking a great question, but it needs a little more context!

To determine the sequence of a DNA strain, we need to know which specific strain you're interested in.

Here's why:

* There are countless DNA strains! From humans to bacteria to plants, each organism has its own unique DNA sequence.

* Even within a species, there's variation! Different individuals of the same species will have slight differences in their DNA, leading to individual variation.

To get the sequence you need, please specify:

1. The organism: What kind of organism are you interested in? (e.g., human, E. coli bacteria, rice plant)

2. The specific strain: Is there a particular name or identifier for the strain (e.g., E. coli K-12, human chromosome 21)?

Once you provide this information, I can help you find the DNA sequence you need!