python两个问题，刚学不知道咋弄

sum = 0
for i in range(10):
    sum+=int(input())
print(sum)

sum = 0
for i in range(1,31):
    sum+=i/(31-i)
print(sum)

num_list=[]

for i in range(10):

    s=int(input('请输入第'+str(i+1)+'个数：'))
    num_list.append(s)

print('输入数的和为：',sum(num_list))