Function: max(divide(2 *(numbers("xxr") if minus(numbers("xxx"), numbers("xxr")) > numbers("xxr") else numbers("xxx") if minus(numbers("xxx"), numbers("xxr")) > numbers("xxr") else numbers("xxx")), numbers("xxr") if numbers("xxx") > numbers("xxr") else minus(numbers("xxx"), numbers("xxr")) if numbers("xxr") > minus(numbers("xxx"), numbers("xxr")) else numbers("xxx")), 2 *(numbers("xxx") if minus(numbers("xxx"), numbers("xxr")) > numbers("xxr") if numbers("xxr") > numbers("xxx") else minus(numbers("xxx"), numbers("xxr")) else numbers("xxr")))