And this is the three end of this complementary DNA sequence that is complementary to this DNA that we essentially began with. So if we begin with this DNA primer, so the DNA primer contains the five prime end, then we have TGC. And then we continue with these. We have tat, then we have GCT, then we have A-T-G and C, and that's the three end. So you raise this 1% over here, and that's the three end. And so now that we know what this sequence is, we can determine what the complementary sequence to this original DNA strand is simply by base parents.