foo.cc: In function 'int main()':
foo.cc:15:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   15 |         for(int i=2;i*i<=b;i++)
      |         ^~~
foo.cc:21:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   21 |                 if(f==1)cout<<"T";
      |                 ^~

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