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# using stringstream
void formatted_print(string s) {
cout << s << endl;
}
int main() {
stringstream ss;
int a = 0, b = 1, c = 2;
ss << "a: " << a << "b: " << b << "c: " << c;
formatted_print(ss.str()); // a: 0 b: 1, c: 2
return 0;
}