3-2
#include<iostream>
using namespace std;
int main () {
    int X;
    float Y;

X = +5;
Y = -2.12;

cout<<"Nilai X    : "<<X<<endl;
cout<<"Nilai Y    : "<<Y<<endl;

X = -X;
Y = -Y;

cout<<"Nilai X    : "<<X<<endl;
cout<<"nilai Y    : "<<Y<<endl;

return 0;
}