Question
Zeph uses four letters to form a pattern. The first 16 letters in the pattern are shown. Which letter is in Position 55?
D E F G G F E D D E F G G F E D ...
1st  2nd  3rd
2 m

Click button first when a symbol is required. X

Zeph uses four letters to form a pattern. The first 16 letters in the pattern are shown. Which letter is in Position 55?
D E F G G F E D D E F G G F E D ...
1st  2nd  3rd