C3123121111113313121111331323133313331323133313231333133313221122212233231   >>    C312312111111331312111133132313331333132313331323133313331322112221223323   <<    C3123121111113313121111331323133313331323133313231333133313221122212233233   >>      C3123121111113313121111331323133313331323133313231333133313221122212233232   >>