C132233133112121111331333133313331323132313231333131133132212112121   >>    C13223313311212111133133313331333132313231323133313113313221211212   <<    C132233133112121111331333133313331323132313231333131133132212112123   >>      C132233133112121111331333133313331323132313231333131133132212112122   >>