我都是抄的。。。。。
```def lmx (sum3,sum5,ao):
if len(ao)==0:
if sum3==sum5:
return True
else:
return False
else:
return lmx(sum3+ao[0],sum5,ao[1:]) or lmx(sum3,sum5+ao[0],ao[1:])
while True:
try :
n,a=input(),input().split()
b=list(map(int, a))
sum0=sum(b)
a5=[]
a3=[]
ao=[]
for i in b:
if i % 5==0:
a5.append(i)
elif i % 3 == 0:
a3.append(i)
else:
ao.append(i)
sum3=sum(a3)
sum5=sum(a5)
if lmx(sum3,sum5,ao) :
print('true')
else:
print('false')
except :
break