text: Big maths solution  #39;looks good #39; One of the toughest problems in maths may have been solved by the Russian scientist Dr Grigori Perelman, of the Steklov Institute of Mathematics.
inputs: Big maths solution  #39;looks good #39; One of the toughest problems in maths may have been solved by the Russian scientist Dr Grigori Perelman, of the Steklov Institute of Mathematics.