C13223313311212111133133313331333133313232233133313331333132212223212321   >>    C1322331331121211113313331333133313331323223313331333133313221222321232   <<    C13223313311212111133133313331333133313232233133313331333132212223212323   >>      C13223313311212111133133313331333133313232233133313331333132212223212322   >>