fun execFunction() {
  print('execFunction')
}

fun execFunctionNested() {
  fun execFunction() {
    print('execFunctionNew')
  }
  print('execFunctionNested')
  execFunction()
}

execFunction()
execFunctionNested()
execFunction()

print('--------')

fun secondExecFunction() {
  print('secondExecFunction')
}

fun secondExecFunctionNested() {
  print('secondExecFunctionNested')
  secondExecFunction()
}

secondExecFunction()
secondExecFunctionNested()
secondExecFunction()

print('--------')

let decode := () -> base64Decode
let sixtyFour := base64Encode

print(sixtyFour('http://www.google.com'))
print((decode())(sixtyFour('http://www.google.com')))
print(decode()(sixtyFour('http://www.google.com')))