Calculator

#include <iostream>
#include <stdlib.h>

int main() {
    double a,b,x;
    std::cout << "a = ";
    std::cin >> a;
    std::cout << "b = ";
    std::cin >> b;
    std::cout << "What do you wanna do?:\n"
    << "[1]Adding\n"
    << "[2]Substraction\n"
    << "[3]Multiplication\n"
    << "[4]Divison\n"
    << "[5]Equalization\n";
    std::cin >> x;

    if (x == 1){
        system("cls");
        std::cout << a+b;
    }
    else if (x == 2){
        system("cls");
        std::cout << a-b;
    }
    else if (x == 3){
        system("cls");
        std::cout << a*b;
    }
    else if (x == 4){
        system("cls");
        std::cout << a/b;
    }

    else if (x == 5){
        if (a>b){
            system("cls");
            std::cout << "Number A is greater than B, difference between them is: "<< a-b;
        }
        else if (a<b){
            system("cls");
            std::cout << "Number B is greater than A, difference between them is: "<< b-a;
        }
        else if (a==b){
            system("cls");
            std::cout << "Numbers are equal";
        }
    }



    return 0;
}