fun <T> Sequence<T>.cacheResult(): Sequence<T> = CachedSequence(this)

internal class CachedSequence<T>(private val sequence: Sequence<T>) : Sequence<T> {
    private val cacheList by lazy { sequence.toList() }

    override fun iterator() = object : Iterator<T> {
        private val iterator by lazy { cacheList.iterator() }

        override fun hasNext() = iterator.hasNext()

        override fun next() = iterator.next()
    }
}