C1111233131211111211113313331333133313331122212111111331323221213311   >>    C111123313121111121111331333133313331333112221211111133132322121331   <<    C1111233131211111211113313331333133313331122212111111331323221213313   >>      C1111233131211111211113313331333133313331122212111111331323221213312   >>