C1111233131211111211113313331333133313232321333133313331312111331   >>    C111123313121111121111331333133313331323232133313331333131211133   <<    C1111233131211111211113313331333133313232321333133313331312111333   >>      C1111233131211111211113313331333133313232321333133313331312111332   >>