#include<iostream>
#include<string>

int main(){
    int a,b;
    if(!(std::cin>>a>>b)){
        std::cout<<"Invalid Input"<<std::endl;
    }else if(b==0){
        std::cout<<"Division by zero is not allowed"<<std:: emdl;
    }else{
        std::cout<<a/b<<std::endl;
    }
    return 0;
}