C2212123213331323132233132233131323131323132313231311331323223313123123121   >>    C221212321333132313223313223313132313132313231323131133132322331312312312   <<    C2212123213331323132233132233131323131323132313231311331323223313123123123   >>      C2212123213331323132233132233131323131323132313231311331323223313123123122   >>