let d1: Int64 = Int64.max
//d1 is 9223372036854775807
//let d2: Int32 = Int32(d1)//<- Error
//let d3: Int = Int(d1)//<- Error
let d4: Int32 = Int32.max
//d4 is 2147483647
let d5: Int64 = Int64(d4)
//d5 is 2147483647
print("d1 = \(d1)")
print("d4 = \(d4)")
print("d5 = \(d5)")