#include <iostream>

using namespace std;

template<typename T>
T shiftleft(T &x1) {
	return x1;
}

// Params (below) is a parameter pack.  There are two operations:
// Params... "unpacks" the types into a list
// sizeof...(Params) is the number of elements in that list
template<typename T, typename ...Params>
T shiftleft(T &x1, Params &... xs) {
	T ret = x1;
	x1 = shiftleft(xs...);
	return ret;
}



int main(int argc, char **argv) {
	int a=1,b=2;
	char c='3';
	double d=4.0,e=5.0;

	cout << shiftleft(a,b,c,d,e) << endl;
	cout << "a=" << a << endl;
	cout << "b=" << b << endl;
	cout << "c=" << c << endl;
	cout << "d=" << d << endl;
	cout << "e=" << e << endl;
}