summ actually

#include <iostream>
using namespace std;
int main() {
    int num1, num2, ns,result;
    char operation,sub;
    cin >> num1,num2,ns,operation;
    int n s, subresult;
switch (operation) {
    case ns=10:
        switch (sub) {
            case operation  = "+":
                result = num1 + num2;
                break;
            case operation = "-":
                    result = num1 - num2;
                    break;
            case operation = "*":
                result = num1 * num2;
                break;
            case operation = "/" :
                    result = num1 / num2;
                    break;
            default: cout << "Wrong Input"
}
    case ns=8:
        switch (sub){
            case operation  = "+":
                subresult = num1 + num2;
                while (n>0)


                break;
            case operation = "-":
                result = num1 - num2;
                break;
            case operation = "*":
                result = num1 * num2;
                break;
            case operation = "/" :
                result = num1 / num2;
                break;
            default: cout << "Wrong Input"
        }
    default: cout << "Wrong Input"
}
    \\ операции для двоичной
    \\ четв
    \\ восьмеричной
    \\ десятичной
    \\ смерть ибо я не знаю как это сделать


    cout << result;
    return 0;
}