C11112331312111112111133133313331333132322121111331333133321131122122321   >>    C1111233131211111211113313331333133313232212111133133313332113112212232   <<    C11112331312111112111133133313331333132322121111331333133321131122122323   >>      C11112331312111112111133133313331333132322121111331333133321131122122322   >>