how to provide step in kotlin loop code example

Example 1: kotlin loop

val school = arrayOf("shark", "salmon", "minnow")
for (element in school) {
    print(element + " ")
}
-> shark salmon minnow

for ((index, element) in school.withIndex()) {
    println("Item at $index is $element\n")
}
-> Item at 0 is shark
Item at 1 is salmon
Item at 2 is minnow

Example 2: kotlin simple for loop

val names = listOf("Jack", "John", "Tim")
for(name in names){
	println(name)
}