#include <iostream>
#include <sstream>
using namespace std;
void appendStream( stringstream &currStream, string input ){
currStream << input;
}
int main() {
stringstream myStream;
int number = 5;
appendStream( myStream, to_string(number) );
bool myBool = false;
appendStream( myStream, to_string(myBool) );
cout << myStream.str() << endl;
return 0;
}
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