Language: C++

#include<iostream>
using namespce std;
int main(){
	string a;
	cin>>a;
	if(a.size()>3 && a[0]=='Y' && a[1]=='A' && a[2]=='K' && a[3]=='I')cout<<"Yes"<<endl;
	else cout<<"No"<<endl;
	return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namespce'
    2 | using namespce std;
      |       ^~~~~~~~
a.cc: In function 'int main()':
a.cc:4:9: error: 'string' was not declared in this scope
    4 |         string a;
      |         ^~~~~~
a.cc:4:9: note: suggested alternatives:
In file included from /usr/include/c++/14/iosfwd:41,
                 from /usr/include/c++/14/ios:40,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
In file included from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44:
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:5:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |         cin>>a;
      |         ^~~
      |         std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:5:14: error: 'a' was not declared in this scope
    5 |         cin>>a;
      |              ^
a.cc:6:75: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |         if(a.size()>3 && a[0]=='Y' && a[1]=='A' && a[2]=='K' && a[3]=='I')cout<<"Yes"<<endl;
      |                                                                           ^~~~
      |                                                                           std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:6:88: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |         if(a.size()>3 && a[0]=='Y' && a[1]=='A' && a[2]=='K' && a[3]=='I')cout<<"Yes"<<endl;
      |                                                                                        ^~~~
      |                                                                                        std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:7:14: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |         else cout<<"No"<<endl;
      |              ^~~~
      |              std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:26: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |         else cout<<"No"<<endl;
      |                          ^~~~
      |                          std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~