t=int(input())
for _ in range(t):
n=int(input())
j=2
for i in range(n):
print(j,end=" ")
if(i&1):
j+=3
else:
j+=1
print()
dD1pbnQoaW5wdXQoKSkKZm9yIF8gaW4gcmFuZ2UodCk6CgluPWludChpbnB1dCgpKQoJaj0yCglmb3IgaSBpbiByYW5nZShuKToKCQlwcmludChqLGVuZD0iICIpCgkJaWYoaSYxKToKCQkJais9MwoJCWVsc2U6CgkJCWorPTEKCXByaW50KCk=