Please demonstrate that you are human, not a spider or robot

 ____   _  _    ____    ___   ____   ____   ______  ____  
|___ \ | || |  |  _ \  / _ \ |___ \ |  _ \ |  ____||___ \ 
  __) || || |_ | |_) || | | |  __) || |_) || |__     __) |
 |__ < |__   _||  _ < | | | | |__ < |  _ < |  __|   |__ < 
 ___) |   | |  | |_) || |_| | ___) || |_) || |      ___) |
|____/    |_|  |____/  \___/ |____/ |____/ |_|     |____/
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GRG for REDUCE
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