#include <iostream>
using namespace std;
int sum(int a, int b){
	return a+b;
}
double sum1(double a, double b){
	return a+b;
}
int main() {
	int z;
	double g;
	z=sum(4,7);
	g=sum1(1.7,1.9);
	cout<<z<<endl<<g;
	return 0;
}