C11112331312111112111133133313331333132322121111331333133321132321   >>    C1111233131211111211113313331333133313232212111133133313332113232   <<    C11112331312111112111133133313331333132322121111331333133321132323   >>      C11112331312111112111133133313331333132322121111331333133321132322   >>