C23221211113313331233133313331312111133133313331211113313221311   >>    C2322121111331333123313331333131211113313331333121111331322131   <<    C23221211113313331233133313331312111133133313331211113313221313   >>      C23221211113313331233133313331312111133133313331211113313221312   >>