C312312111111331312111133133313331322331312111112111133132233131133132313233221   >>    C31231211111133131211113313331333132233131211111211113313223313113313231323322   <<    C312312111111331312111133133313331322331312111112111133132233131133132313233223   >>      C312312111111331312111133133313331322331312111112111133132233131133132313233222   >>