foo.cc: In function ‘int main()’:
foo.cc:12:33: warning: this ‘else’ clause does not guard... [-Wmisleading-indentation]
   12 |                                 else
      |                                 ^~~~
foo.cc:13:53: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘else’
   13 |                                         cout<<"28"; break;
      |                                                     ^~~~~