C312312111111331312111133133313331322331333133313331323331323133313132321   >>    C31231211111133131211113313331333132233133313331333132333132313331313232   <<    C312312111111331312111133133313331322331333133313331323331323133313132323   >>      C312312111111331312111133133313331322331333133313331323331323133313132322   >>