C22121333132313311211113313331333132233131133133313331311331333131211331121   >>    C2212133313231331121111331333133313223313113313331333131133133313121133112   <<    C22121333132313311211113313331333132233131133133313331311331333131211331123   >>      C22121333132313311211113313331333132233131133133313331311331333131211331122   >>