C312312111111331312111133133313331333133313231333132322331313231   >>    C31231211111133131211113313331333133313331323133313232233131323   <<    C312312111111331312111133133313331333133313231333132322331313233   >>      C312312111111331312111133133313331333133313231333132322331313232   >>