foo.cc: In function 'int main()':
foo.cc:19:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   19 |     for(month=1;month<=12;month++)
      |     ^~~
foo.cc:21:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   21 |  return 0;
      |  ^~~~~~

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