<'
extend sys {
  run() is also {
    var i : int = 0;
    out ("Loop 1");
    for i from 2 to 2 * 4 do { 
      out(i); 
    }; 
    out ("Loop 2");
    for i from 1 to 5 step 3 do { 
      out(i); 
    }; 
    out ("Loop 3");
    for i from 7 down to 1 step 2 do { 
      out(i); 
    }; 
  };
};
'>