#include <iostream>
#include <sstream>
using namespace std;
int main()
{
char ch;
stringstream strinout;
strinout << 10 << " + " << 12 << " is " << 10+12 << endl;
do {
ch = strinout.get();
if(!strinout.eof()) cout << ch;
} while(!strinout.eof());
cout << endl;
strinout.clear();
strinout << "More output to strinout.\n";
cout << "the characters just added to strinout:\n";
do {
ch = strinout.get();
if(!strinout.eof()) cout << ch;
} while(!strinout.eof());
}
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