/in/foo.cc: In function 'int main()':
/in/foo.cc:7:7: error: unable to find numeric literal operator 'operator""f'
  if(h=60f ){
       ^~~
/in/foo.cc:7:7: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
/in/foo.cc:10:7: error: unable to find numeric literal operator 'operator""s'
  if(f=60s ){
       ^~~
/in/foo.cc:10:7: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
/in/foo.cc:13:5: error: 's' was not declared in this scope
  if(s){
     ^
/in/foo.cc:16:12: error: expected primary-expression before '<<' token
  cout<<h<< <<f<< <<s;
            ^~
/in/foo.cc:16:18: error: expected primary-expression before '<<' token
  cout<<h<< <<f<< <<s;
                  ^~
/in/foo.cc:16:20: error: 's' was not declared in this scope
  cout<<h<< <<f<< <<s;
                    ^