fun main() {
val numbers = (1..18).toList()
val chunks = numbers.chunked(4)
println(chunks)
println(chunks[0])
println(chunks[0][0])
println(chunks[0][1])
println(chunks[0][2])
println(chunks[0][3])
}
/*
run:
[[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12], [13, 14, 15, 16], [17, 18]]
[1, 2, 3, 4]
1
2
3
4
*/