// 1 <= index <= 5
for index in 1...5 {  
  print("\(index) times 5 is \(index * 5)")
}

// 0<= i < count
for i in 0..<count {
  print("Person \(i + 1) is called \(names[i])")
}

// 2<=
for name in names[2...] {
  print(name)
}

// <2
for name in names[..<2] {
  print(name)
}

// let 0<= range <= 5
let range = ...5