#39563: python 國小數學
先找到比n小的最大的7的倍數，用replace()方法將其消掉
while True:
n=int(input())
if n==0:
break
maxseven=(n-1)//7
answer=''
for i in range(1,n):
answer+=str(i)+' '
for sev in range(1,maxseven+1):
answer=answer.replace(f' {str(sev*7)} ',' ')
print(answer[:-1])