static long roundUpToPowerOfTen(int i) {
  ret i <= 1000000
    ? i <= 1000
      ? i <= 1 ? 1 : i <= 10 ? 10 : i <= 100 ? 100 : 1000
      : i <= 10000 ? 10000 : i <= 100000 ? 100000 : 1000000
    : i <= 1000000000
      ? i <= 10000000 ? 10000000 : i <= 100000000 ? 100000000
      : 1000000000
    : 10000000000;
}