from array import array
import numbers
import statistics
array=[]

def add_items_to_array():
    print("Operations:\n1.Add numbers\n2.That are all numbers\n3.Exit\nThere are %s Elements in the array" %(len(array)))
    operation=int(input("Operation:"))
    if operation == 1:
        numbers_to_add=float(input("Number:"))
        array.append(numbers_to_add)
        add_items_to_array()
    elif operation == 2:
        get_median()
    elif operation == 3:
        exit()
    else:
        print("Input the right operation")
        add_items_to_array()

def get_median():
    median_item=statistics.median(array)
    print(median_item)
    exit()

add_items_to_array()