C111123313331323113313331333133313231333133313331331121111331231   >>    C11112331333132311331333133313331323133313331333133112111133123   <<    C111123313331323113313331333133313231333133313331331121111331233   >>      C111123313331323113313331333133313231333133313331331121111331232   >>