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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     string s = "123";
  9.     s.append(s.substr(2)).push_back(s[s.length() - 2]);
  10.     cout << s;
  11. }
  12.  
  13.  
Success #stdin #stdout 0s 5288KB
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stdin
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Standard input is empty
stdout
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12333
https://ideone.com/mzR42n
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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