<jupyter_start><jupyter_text>**Chef and String Problem  | Code: RECNDSTR** **Chef has a string S consisting of lowercase English characters. Chef defined functions left shift L(X) and right shift R(X) as follows.**L(X) is defined as shifting all characters of string X one step towards left and moving the first character to the end.R(X) is defined as shifting all characters of string X one step towards the right and moving the last character to the beginning.For example, L("abcd") = "bcda" and R("abcd") = "dabc"Chef wants to find out whether there exists a string V of the same length as S such that both L(V)=S and R(V)=S holds.> InputThe first line of the input contains a single integer T denoting the number of test cases. The description of T test cases follows.The first line of each test case contains a string S.> OutputFor each test case, If there exists a valid string V, print "YES", otherwise print "NO" (without the quotes).**Constraints**1≤T≤1001≤|S|≤106S contains all lower case English alphabets.It's guaranteed that the total length of the strings in one test file doesn't exceed 106```Sample Input:4aababcdaaaaaSample Output:YESYESNOYESExplanation:In the first test case, Chef can choose V=SIn the second test case, Chef can choose V = "ba" which satisfies both conditions.There doesn't exist any valid choice for string V in the third test case.```<jupyter_code>for _ in range(int(input())):
  s=input()
  u=s[1:]+s[0]
  k=s[-1]+s[:-1]
  if k==u:
    print('YES')
  else:
    print('NO')
def rotate(input,d): 
  Lfirst = input[0 : d] 
  Lsecond = input[d :] 
  Rfirst = input[0 : len(input)-d] 
  Rsecond = input[len(input)-d : ] 
  
  left = Lsecond + Lfirst
  right = Rsecond + Rfirst
  
  if left == right :
    return "YES"
  else :
    return "NO"
  
T = input()
for i in range(int(T)) :
  A = input()
  print(rotate(A,1))<jupyter_output>3
abcd
NO
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
YES
cd
YES
{'fraction_non_alphanumeric': 0.09895833333333333, 'fraction_numerical': 0.010416666666666666, 'mean_word_length': 4.306629834254144, 'pattern_counts': {'":': 0, '<': 4, '<?xml version=': 0, '>': 6, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 1, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'chain_length': '1', 'dir': 'jupyter-structured-clean-dedup', 'id': '533976', 'license': 'MIT', 'n_tokens_mistral': 622, 'n_tokens_neox': 588, 'n_words': 261, 'path': 'Chef_and_String_Problem.ipynb', 'repo_name': 'sudipmitraonline/CodeChef-Problems', 'size': '1920'}