C11112331312111112111133132313331333133313232212111111331323222331   >>    C1111233131211111211113313231333133313331323221211111133132322233   <<    C11112331312111112111133132313331333133313232212111111331323222333   >>      C11112331312111112111133132313331333133313232212111111331323222332   >>