#include <iostream>
using namespace std;

int main() {
int mc;
int fn;
int sn;

cout<<"if you want a multiplactoin calculator press numper 1"<<endl;
cout<<"if you want a ading calculator press numper 2"<<endl;
cout<<"if you want subtraction press 3"<<endl;
cin>>mc;


int fn;
int sn;
int result;
cout<<"pleas enter your first number"<<endl;
cin>>fn;
cout<<"pleas enter your second number"<<endl;
cin>>sn;

if(mc == 1){
    result =fn*sn;
    cout<<"result = ";
    cout<<result;
}
else if(mc == 2){
    result = fn+sn;
    cout<<"result = ";
    cout<<result2;
}else if(mc == 3){
    result = fn-sn;
    cout<<"result = ";
    cout<<result;
}
    return 0;
}