C1111233131211111211113313331333133313232321333133313331333131122313123131   >>    C111123313121111121111331333133313331323232133313331333133313112231312313   <<    C1111233131211111211113313331333133313232321333133313331333131122313123133   >>      C1111233131211111211113313331333133313232321333133313331333131122313123132   >>