C313131323331311331322331322331311211331323331313331323132323312331   >>    C31313132333131133132233132233131121133132333131333132313232331233   <<    C313131323331311331322331322331311211331323331313331323132323312333   >>      C313131323331311331322331322331311211331323331313331323132323312332   >>