C312322331333132212111133133313331333133312121111331323211123132311   >>    C31232233133313221211113313331333133313331212111133132321112313231   <<    C312322331333132212111133133313331333133312121111331323211123132313   >>      C312322331333132212111133133313331333133312121111331323211123132312   >>