C1111233131211111211113313331333133313232321333133313331333211232333133311   >>    C111123313121111121111331333133313331323232133313331333133321123233313331   <<    C1111233131211111211113313331333133313232321333133313331333211232333133313   >>      C1111233131211111211113313331333133313232321333133313331333211232333133312   >>