C313131323331311331322331322331311211331323331322331323131311311   >>    C31313132333131133132233132233131121133132333132233132313131131   <<    C313131323331311331322331322331311211331323331322331323131311313   >>      C313131323331311331322331322331311211331323331322331323131311312   >>