app.py

import gradio as gr
aList = []
bList = []
def add2List(num):
    num = int(num)
    aList.append(num)
    bList.append(num)
    bList.sort()
    MAX = max(aList)
    MIN = min(aList)
    return aList, bList, MAX, MIN

iface = gr.Interface(fn=add2List, inputs="text", outputs=["text","text","text","text"])
iface.launch()