C111123313331323113313331333133313231333132311312111133132233131322231   >>    C11112331333132311331333133313331323133313231131211113313223313132223   <<    C111123313331323113313331333133313231333132311312111133132233131322233   >>      C111123313331323113313331333133313231333132311312111133132233131322232   >>