/in/foo.cc:2:7: error: expected nested-name-specifier before 'namepace'
    2 | using namepace std;
      |       ^~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:6:8: error: 'cin' was not declared in this scope
    6 |  while(cin>>>n){
      |        ^~~
/in/foo.cc:6:13: error: expected primary-expression before '>' token
    6 |  while(cin>>>n){
      |             ^
/in/foo.cc:9:12: error: unable to find numeric literal operator 'operator""d'
    9 |   sprinf(s,02d%,i);
      |            ^~~
/in/foo.cc:9:12: note: use '-fext-numeric-literals' to enable more built-in suffixes
/in/foo.cc:9:16: error: expected primary-expression before ',' token
    9 |   sprinf(s,02d%,i);
      |                ^
/in/foo.cc:9:3: error: 'sprinf' was not declared in this scope; did you mean 'sprintf'?
    9 |   sprinf(s,02d%,i);
      |   ^~~~~~
      |   sprintf
/in/foo.cc:10:3: error: 'cout' was not declared in this scope
   10 |   cout<<setw(4)<<s;
      |   ^~~~
/in/foo.cc:10:9: error: 'setw' was not declared in this scope; did you mean 'getw'?
   10 |   cout<<setw(4)<<s;
      |         ^~~~
      |         getw
/in/foo.cc:11:19: error: 'endl' was not declared in this scope
   11 |   if(i%5==0)cout<<endl;
      |                   ^~~~
/in/foo.cc:13:3: error: 'cout' was not declared in this scope
   13 |   cout<<endl;
      |   ^~~~
/in/foo.cc:13:9: error: 'endl' was not declared in this scope
   13 |   cout<<endl;
      |         ^~~~