/in/foo.cc:3:5: error: 'cin' does not name a type
    3 |     cin >> a >> b >> c >> d;
      |     ^~~
/in/foo.cc:4:5: error: 'total' does not name a type
    4 |     total = a * 3600 + b * 60 + c + d;
      |     ^~~~~
/in/foo.cc:6:5: error: 'total' does not name a type
    6 |     total %= 24 * 3600;
      |     ^~~~~
/in/foo.cc:7:5: error: expected unqualified-id before 'if'
    7 |     if (total < 0) total += 24 * 3600;
      |     ^~
/in/foo.cc:8:5: error: 'hour' does not name a type
    8 |     hour = total / 3600;
      |     ^~~~
/in/foo.cc:9:5: error: 'min' does not name a type
    9 |     min  = (total / 60) % 60;
      |     ^~~
/in/foo.cc:10:5: error: 'miao' does not name a type
   10 |     miao = total % 60;
      |     ^~~~
/in/foo.cc:12:5: error: 'cout' does not name a type
   12 |     cout << hour << " " << min << " " << miao << endl;
      |     ^~~~
/in/foo.cc:13:5: error: expected unqualified-id before 'return'
   13 |     return 0;
      |     ^~~~~~