def zhishu(a):
    for i in range(2,a):
        if a % i == 0:
            return False
    else:
        return True
t=0
sum=0
a=int(input())

for i in range(2,a):
    if t >= a:
        break
    if zhishu(i):
        t+=i
        print(i)
        sum+=1
print(sum)

各位大佬看看哪里错