Let's check that everything is correct! Please copy and paste the code, run it, and paste the result in the answer box.
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
fun main() = runBlocking {
for (i in 200..1000 step 200) {
launch {
delay(1000L - i)
print(i)
}
}
}