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Next is to try shifting. Our chi tests for shifting slice 0 from 0-25:
CODE
0  0.04179
1  0.03688
2  0.03963
3  0.03395
4  0.03166
5  0.03732
6  0.06339
7  0.04039
8  0.03832
9  0.03728
10  0.04022
11  0.03069
12  0.04337
13  0.04017
14  0.02968
15  0.03483
16  0.03733
17  0.03807
18  0.03472
19  0.04533
20  0.03865
21  0.04179
22  0.03650
23  0.03672
24  0.03425
25  0.03708
We have a clear peak at a shift of 6, or a keyword value of 'G'. ('A' == 0).