C312312111111331312111133133313331333133313231323133313331333133313132322331311   >>    C31231211111133131211113313331333133313331323132313331333133313331313232233131   <<    C312312111111331312111133133313331333133313231323133313331333133313132322331313   >>      C312312111111331312111133133313331333133313231323133313331333133313132322331312   >>