Main.cc: In function 'int main()':
Main.cc:5:4: error: expected initializer before 'cin'
    5 |    cin>>year>>month;
      |    ^~~
Main.cc:6:7: error: 'month' was not declared in this scope
    6 |    if(month>12){
      |       ^~~~~
Main.cc:8:54: error: expected primary-expression before ')' token
    8 |    }else if(month==4||month==6||month==9||month==11||){
      |                                                      ^