#include <iostream>
 
using namespace std;
 
class clsMesinKira{
	private:
		float a,b;
	public:
		void setData(float p, float q){
			a=p;
			b=q;
		}
 
		void doCampur(void){
			cout<<a+b<<endl;
		}
 
		void doTolak(void){
			cout<<a-b<<endl; //andaikan nilai pertama tolak nilai kedua
		}
		void doDarab(void){
			cout<<a*b<<endl; //andaikan nilai pertama darab nilai kedua
		}
		void doBahagi(void){
			cout<<a/b<<endl; //andaikan nilai pertama bahagi nilai kedua
		}
 
 
 
};
 
 
 
int main() {
	clsMesinKira objMesinKira;
	objMesinKira.setData(1,2);	
	objMesinKira.doCampur();
	objMesinKira.doTolak();
	objMesinKira.doDarab();
	objMesinKira.doBahagi();
	return 0;
}

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