C313131323331311331312313231323132313231323132233132322331323211131   >>    C31313132333131133131231323132313231323132313223313232233132321113   <<    C313131323331311331312313231323132313231323132233132322331323211133   >>      C313131323331311331312313231323132313231323132233132322331323211132   >>