/in/foo.cc: In function 'int main()':
/in/foo.cc:5:4: error: expected ';' before 'int'
    5 | (1) int V;
      |    ^~~~
      |    ;
/in/foo.cc:5:2: warning: statement has no effect [-Wunused-value]
    5 | (1) int V;
      | ~^~
/in/foo.cc:6:14: error: 'V' was not declared in this scope
    6 |         cin>>V;
      |              ^
/in/foo.cc:7:19: error: 'v' was not declared in this scope
    7 |         cout<<0.5*v;
      |                   ^
/in/foo.cc:8:4: error: expected ';' before 'int'
    8 | (2) int G;
      |    ^~~~
      |    ;
/in/foo.cc:8:2: warning: statement has no effect [-Wunused-value]
    8 | (2) int G;
      | ~^~
/in/foo.cc:9:14: error: 'G' was not declared in this scope
    9 |         cin>>G;
      |              ^
/in/foo.cc:11:23: error: 'M' was not declared in this scope
   11 |                 cout<<M;
      |                       ^
/in/foo.cc:13:23: error: 'N' was not declared in this scope
   13 |                 cout<<N;
      |                       ^