C111123313331323113313331333133313231333132311312111133131211111312231   >>    C11112331333132311331333133313331323133313231131211113313121111131223   <<    C111123313331323113313331333133313231333132311312111133131211111312233   >>      C111123313331323113313331333133313231333132311312111133131211111312232   >>