C111123313331323113313331333133313331323123231333133313331331123313331323233231   >>    C11112331333132311331333133313331333132312323133313331333133112331333132323323   <<    C111123313331323113313331333133313331323123231333133313331331123313331323233233   >>      C111123313331323113313331333133313331323123231333133313331331123313331323233232   >>