C313131323331311331322331322331311211331323132311113313233313232212111   >>    C31313132333131133132233132233131121133132313231111331323331323221211   <<    C313131323331311331322331322331311211331323132311113313233313232212113   >>      C313131323331311331322331322331311211331323132311113313233313232212112   >>