#exam solution 

import random

def bank_account(num_days):
	total=0
	over=0
	for i in range(num_days):
		balance=random.randint(-10, 100)
		print(balance)
		total+=balance
		if(balance<0):
			over+=1
	return total/num_days, over



def main():
	num_customers=int(input("number of customers "))
	num_days=int(input("number of days "))

	fee=0

	for i in range(num_customers):
		ave, over=bank_account(num_days)
		print("customer", i+1, "average balance", ave, "days over", over) 
		if(ave<25):
			fee+=1
		
	print(fee, "customers paid the monthly fee")

main()