#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;
}
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