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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. string s;
  7. cin>>s;
  8.  
  9.  
  10. if(s[1]==s[3] && s[2]==s[4])
  11. {
  12. cout<<"Yes";
  13. }
  14. else
  15. {
  16. cout<<"No";
  17. }
  18.  
  19. }
  20.  
Success #stdin #stdout 0s 5304KB
stdin
Standard input is empty
stdout
No