n=int(input())
x=input().split()
b=[]
x=[int(a) for a in x]
print (x)
for a in x:
if a%5==0 and a!=0:
b.append(a)
if len(b)!=0:
print(b[-1])
else:
print("-1")
bj1pbnQoaW5wdXQoKSkKeD1pbnB1dCgpLnNwbGl0KCkKYj1bXQp4PVtpbnQoYSkgZm9yIGEgaW4geF0KcHJpbnQgKHgpCmZvciBhIGluIHg6CiAgICBpZiBhJTU9PTAgYW5kICBhIT0wOgogICAgICAgIGIuYXBwZW5kKGEpCmlmIGxlbihiKSE9MDoKICAgIHByaW50KGJbLTFdKQplbHNlOgogICAgcHJpbnQoIi0xIik=