Anagram giving runtime error

general
1

n=int(input())
while n!=0:

s1 = "".join(sorted(input()))
s2 = "".join(sorted(input()))

if len(s1) == len(s2):
    if s1 in s2:
        print("Yes")
    else:
        print("No")
else:
    print("No")
n-=1