جمع بزرگان

Main.cpp

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#include <iostream>

using namespace std;

int main()
{
    string a,b;
    string command;
    
    cin >> a;
    cin >> command;
    cin >> b;
    
    if (a.length() < b.length()){
        string temp = b;
        b = a;
        a = temp;
    }
    
    if (command == "+"){
        
        a[a.length() - b.length()] = a[a.length() - b.length()] + 1;
        
    }else if (command == "*"){
        for (int i = 1; i < b.length(); i++) {
            a = a + '0';
        }
    }
    
    cout << a;

    return 0;
}