100doors.hk

//
// 100doors.hk
//

var square = 1;
var increment = 3;

println("The open doors are: ");

for (var door = 1; door <= 100; door++)
{
  if (door != square)
    continue;
  print(to_string(door) + " ");
  square += increment;
  increment += 2;
}

println("");