C312312111111331312111133133313121111133313113313331322331323211331322311   >>    C31231211111133131211113313331312111113331311331333132233132321133132231   <<    C312312111111331312111133133313121111133313113313331322331323211331322313   >>      C312312111111331312111133133313121111133313113313331322331323211331322312   >>