EOJ-自适应编程学习平台

Input several one blank separated integers, output the maximum, minimum and average (with %.2f format) of all positive integers separated by a space in one line and those of all negative integers in next line.

There are no more than $10^6$ integers. Every one of them can be stored in a signed 32-bit integer. It is guaranteed that there is at least one positive integer and at least one negative integer.