백준 4673 셀프넘버

for i in range(1,10001):
    a = i + str(i)
    nums = []
    nums.append(a)
print(range(1,10001) - set(nums))
#런타임에러

natural_num = set(range(1,10001)) 
generated_num = set() 

for i in range(1,10001):
    for j in str(i):
        i += int(j) 
    generated_num.add(i) # add 함수 사용

self_num = sorted(natural_num - generated_num)
for i in self_num:
    print(i)

r=range(9999);
print(*sorted({*r}-{n+sum(map(int,str(n)))for n in r}))