#include <iostream>
using namespace std;
int mul(int,int);
float mul(float,int);
int mul(int a,int b)
{
return a*b;
}
float mul(double x, int y)
{
return x*y;
}
int main()
{
int r1 = mul(6,7);
float r2 = mul(0.2,3);
std::cout << "r1 is : " <<r1<< std::endl;
std::cout <<"r2 is : " <<r2<< std::endl;
return 0;
}