More weird C++

#include <iostream.h>

void main () {
  int i,j,k;

  i=10; j=20; k=30;
  cin >> i >> j >> k;
  cout << i << endl << j << endl << k << endl;
}

/** Sample runs

1 2 3
1
2
3

1234.56 7 89
1234
20
30

**/