s=1
while True:
usr=input('>>')
if usr=='':
if s%10==7 or s//10==7 or s%7==0:
s += 1#之前放到了continue后面了 结果变成了死循环
continue
else:
print(s,end='')
s+=1
else:break
s=1
while True:
usr=input('>>')
if usr=='':
if s%10==7 or s//10==7 or s%7==0:
s += 1#之前放到了continue后面了 结果变成了死循环
continue
else:
print(s,end='')
s+=1
else:break