foo.cc:32:37: error: extended character 　 is not valid in an identifier
   32 |         if(num3==1762198500) cout <<　3909682148;
      |                                     ^
foo.cc: In function 'int main()':
foo.cc:32:37: error: '\U000030003909682148' was not declared in this scope
   32 |         if(num3==1762198500) cout <<　3909682148;
      |                                     ^~~~~~~~~~~~

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