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  1. #include <ciso646>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7. do do do not cin, not wcin; while(not cout, not wcout); while(not clog, not wclog); while(not cerr, not wcerr);
  8. }
  9.  
Success #stdin #stdout 0s 3336KB
stdin
Standard input is empty
stdout

Standard output is empty