Repeat unit CCCCGG/CCGGGG repeats 4 times in the reference sequence.
...CCCCGCCCTCGCCTCGACCCCGGGGGGCGGTGGCTGCCGAGGCGACCGTTGCGCGCGCGGGCGGTGGCGCGGGCCGAAGCGCCCGGAGCGGGAGCGAGCG
GCGCGGCCCGGTAGGTGTGCGGGGCCGGGGCCGGGGCGGGGGCAGGGCGCGCCGCCTCCGCTCTTTCTTTCGTCTCCGGGGCGCGCGCCCGCGCCCTCCG
CCTCCCGGCCGATCCCGGCCAGCCCTGCGCGGCGCCCGTCCCCTCGGGGTCGCCGCCCGCCCG...