_____
        __~~     ~~__
       |  )       (  |           _-----_              _____
       |_(_________)_|        _-+~~~~~~~+-_        _~~     ~~_
       (\;| o   o |;/)      /~  _-;';';-_  ~\     /           \
        \(    |    )/      (  _+--_   _--+_  )   | (_________) |
        ''\ `---' /''       ~`-___o)-(o___-'~    |  (_o)-(o_)  |
         __T\___/T__        ,';(    .    );',    | (  ,,^,,  ) |
     ,---' `_   _' `---,     ,';\  -=-  /;',     | ;\_,,,,,_/; |
    /|       ~v~       |\    _--~T-----T~--_     \_''| ''' |''_/
   / |        6        | \ ,-\    \   /    /-, ,==~|\`-___-'/|~==,
  /  |        |        |  Y|  \_   \ /   _/  |Y|    \\=====//    |\
 /   |        |        |   \\   \_  Y  _/   // |     \\===//     | \
<  =< \       |       / >=  >\    \_|_/    //  |      \\=//      |  \
 \   \ |      |      |_/   /  \     T     /<  =\__     \Y/       /=  >
  \   \|      |     (_/  ,'    >~--,+,--~<  \,  \_)     |      _/  ,/
   ',  /      |      \  /     /   | | |   \   ~-_/      |      \_-~
     ~~|______|______|~~     |    ' | `    |     |      |      |
          \   |   /          \      |      /     |      |      |
           (_ | _)            \     |     /      |______|______|
           |  |  |            |     |     |         (__ | __)
           |  |  |            |     |     |         |   |   |
          /   |   \           |_____|_____|        /    |    \   =W.L.=
         (_-~~+~~-_)            |  \ /  |         (_-~~-+-~~-_)
         (____|____)             \_| |_/          (_____|_____)
 ->Henry O. Angel, Nata A.V., Winnie J. Luzhin. Protvino, 7 Feb.1996<-