---

a = int(input())
sch = 0
while a!=0:
    if a%8 == 5 and 8**3 <= a < 8**4:
        sch+=1
    a = int(input())
print(sch)



a = int(input())
sch = 0
while a!=0:
    if a%5 == 0 and 5**3 <= a < 5**4:
        sch+=1
    a = int(input())
print(sch)



n = int(input())
col = 0
summ = 0
for _ in range(n):
    a = int(input())
    if a%7 == 1 or a%7 == 3 or a%7 == 5 or a%7 == 7 or a%7 == 9:
        col+=1
        summ += a
if col > 0:
    print(summ/col)
else:
    print('NO')