C111123313331323113313331333133313331122112312111112111112111111331323233231   >>    C11112331333132311331333133313331333112211231211111211111211111133132323323   <<    C111123313331323113313331333133313331122112312111112111112111111331323233233   >>      C111123313331323113313331333133313331122112312111112111112111111331323233232   >>