import random
def mean(numlist):
total=sum(numlist)
length=len(numlist)
mean=total/length
return mean
x = random.sample(list(range(0, 20)), k = random.randint(5, 10))
print(x)
#print("ave"+str(mean)) ここがおかしい
print("ave"+str(mean(x)))
aW1wb3J0IHJhbmRvbQoKZGVmIG1lYW4obnVtbGlzdCk6CiAgICB0b3RhbD1zdW0obnVtbGlzdCkKICAgIGxlbmd0aD1sZW4obnVtbGlzdCkKICAgIG1lYW49dG90YWwvbGVuZ3RoCiAgICByZXR1cm4gbWVhbgoKeCA9IHJhbmRvbS5zYW1wbGUobGlzdChyYW5nZSgwLCAyMCkpLCBrID0gcmFuZG9tLnJhbmRpbnQoNSwgMTApKQpwcmludCh4KQojcHJpbnQoImF2ZSIrc3RyKG1lYW4pKSDjgZPjgZPjgYzjgYrjgYvjgZfjgYQKcHJpbnQoImF2ZSIrc3RyKG1lYW4oeCkpKQo=