C313131323331311331322331322331311211331323331322331323231323132311   >>    C31313132333131133132233132233131121133132333132233132323132313231   <<    C313131323331311331322331322331311211331323331322331323231323132313   >>      C313131323331311331322331322331311211331323331322331323231323132312   >>