Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
????int a,aa,b,bb,c=0;
????cin>>a>>aa>>b>>bb;
if(a!=1&&b!=1&&a==aa&&b==bb)cout<<"ISONO"<<endl;
????else cout<<"NAKAJIMA"<<endl;
????return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:1: error: expected primary-expression before '?' token
    4 | ????int a,aa,b,bb,c=0;
      | ^
a.cc:4:2: error: expected primary-expression before '?' token
    4 | ????int a,aa,b,bb,c=0;
      |  ^
a.cc:4:3: error: expected primary-expression before '?' token
    4 | ????int a,aa,b,bb,c=0;
      |   ^
a.cc:4:4: error: expected primary-expression before '?' token
    4 | ????int a,aa,b,bb,c=0;
      |    ^
a.cc:4:5: error: expected primary-expression before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
a.cc:4:5: error: expected ':' before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
      |     :
a.cc:4:5: error: expected primary-expression before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
a.cc:4:5: error: expected ':' before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
      |     :
a.cc:4:5: error: expected primary-expression before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
a.cc:4:5: error: expected ':' before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
      |     :
a.cc:4:5: error: expected primary-expression before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
a.cc:4:5: error: expected ':' before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
      |     :
a.cc:4:5: error: expected primary-expression before 'int'
    4 | ????int a,aa,b,bb,c=0;
      |     ^~~
a.cc:5:1: error: expected primary-expression before '?' token
    5 | ????cin>>a>>aa>>b>>bb;
      | ^
a.cc:5:2: error: expected primary-expression before '?' token
    5 | ????cin>>a>>aa>>b>>bb;
      |  ^
a.cc:5:3: error: expected primary-expression before '?' token
    5 | ????cin>>a>>aa>>b>>bb;
      |   ^
a.cc:5:4: error: expected primary-expression before '?' token
    5 | ????cin>>a>>aa>>b>>bb;
      |    ^
a.cc:5:10: error: 'a' was not declared in this scope
    5 | ????cin>>a>>aa>>b>>bb;
      |          ^
a.cc:5:13: error: 'aa' was not declared in this scope
    5 | ????cin>>a>>aa>>b>>bb;
      |             ^~
a.cc:5:17: error: 'b' was not declared in this scope
    5 | ????cin>>a>>aa>>b>>bb;
      |                 ^
a.cc:5:20: error: 'bb' was not declared in this scope
    5 | ????cin>>a>>aa>>b>>bb;
      |                    ^~
a.cc:5:22: error: expected ':' before ';' token
    5 | ????cin>>a>>aa>>b>>bb;
      |                      ^
      |                      :
a.cc:5:22: error: expected primary-expression before ';' token
a.cc:5:22: error: expected ':' before ';' token
    5 | ????cin>>a>>aa>>b>>bb;
      |                      ^
      |                      :
a.cc:5:22: error: expected primary-expression before ';' token
a.cc:5:22: error: expected ':' before ';' token
    5 | ????cin>>a>>aa>>b>>bb;
      |                      ^
      |                      :
a.cc:5:22: error: expected primary-expression before ';' token
a.cc:5:22: error: expected ':' before ';' token
    5 | ????cin>>a>>aa>>b>>bb;
      |                      ^
      |                      :
a.cc:5:22: error: expected primary-expression before ';' token
a.cc:7:1: error: expected primary-expression before '?' token
    7 | ????else cout<<"NAKAJIMA"<<endl;
      | ^
a.cc:7:2: error: expected primary-expression before '?' token
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |  ^
a.cc:7:3: error: expected primary-expression before '?' token
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |   ^
a.cc:7:4: error: expected primary-expression before '?' token
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |    ^
a.cc:7:5: error: expected primary-expression before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
a.cc:7:5: error: expected ':' before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
      |     :
a.cc:7:5: error: expected primary-expression before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
a.cc:7:5: error: expected ':' before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
      |     :
a.cc:7:5: error: expected primary-expression before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
a.cc:7:5: error: expected ':' before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
      |     :
a.cc:7:5: error: expected primary-expression before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
a.cc:7:5: error: expected ':' before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
      |     :
a.cc:7:5: error: expected primary-expression before 'else'
    7 | ????else cout<<"NAKAJIMA"<<endl;
      |     ^~~~
a.cc:8:1: error: expected primary-expression before '?' token
    8 | ????return 0;
      | ^
a.cc:8:2: error: expected primary-expression before '?' token
    8 | ????return 0;
      |  ^
a.cc:8:3: error: expected primary-expression before '?' token
    8 | ????return 0;
      |   ^
a.cc:8:4: error: expected primary-expression before '?' token
    8 | ????return 0;
      |    ^
a.cc:8:5: error: expected primary-expression before 'return'
    8 | ????return 0;
      |     ^~~~~~
a.cc:8:5: error: expected ':' before 'return'
    8 | ????return 0;
      |     ^~~~~~
      |     :
a.cc:8:5: error: expected primary-expression before 'return'
    8 | ????return 0;
      |     ^~~~~~
a.cc:8:5: error: expected ':' before 'return'
    8 | ????return 0;
      |     ^~~~~~
      |     :
a.cc:8:5: error: expected primary-expression before 'return'
    8 | ????return 0;
      |     ^~~~~~
a.cc:8:5: error: expected ':' before 'return'
    8 | ????return 0;
      |     ^~~~~~
      |     :
a.cc:8:5: error: expected primary-expression before 'return'
    8 | ????return 0;
      |     ^~~~~~
a.cc:8:5: error: expected ':' before 'return'
    8 | ????return 0;
      |     ^~~~~~
      |     :
a.cc:8:5: error: expected primary-expression before 'return'
    8 | ????return 0;
      |     ^~~~~~