#include <iostream>
#include <sstream>
using namespace std;
int main() {
// your code goes here
int i = 100;
stringstream ss,aa;
ss << i;
string number;
ss >> number;
string tmp = string(number.rbegin(),number.rend());
cout << tmp << endl;
aa << tmp;
aa >> i;
cout << i <<endl;
return 0;
}
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