/in/foo.cc: In function 'int main()':
/in/foo.cc:9:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<s.size(); i++) sum*=(s[i]-64);
                ~^~~~~~~~~
/in/foo.cc:10:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=0; i<s1.size(); i++) sum1*=(s1[i]-64);
                ~^~~~~~~~~~

FormatError('config file not found',)