C312312111111331312111133133313331322331333133313121111331323133313331333132321   >>    C31231211111133131211113313331333132233133313331312111133132313331333133313232   <<    C312312111111331312111133133313331322331333133313121111331323133313331333132323   >>      C312312111111331312111133133313331322331333133313121111331323133313331333132322   >>