题解 | #牛牛的素数和#
牛牛的素数和
https://www.nowcoder.com/practice/d748d79f68ab443482c5547d93824f50
l,r=map(int,input().split())
list1=[]
for i in range(l,r+1):
for j in range(2,i):
if i%j==0:
break
else:
list1.append(i)
if 1 in list1:
list1.remove(1)
print(sum(list1))
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