pavlova4.2

using namespace std;

#include <iostream>

int summ(int x){
    if(x==0){
        cout<<"done"<<endl;
        return 0;
    }
    else{
        cout<<x%10<<"!"<<endl;
        return x%10+summ(x/10);
    }
}

int main(){
    int a;
    cout<<"input=";
    cin>>a;
    cout<<a<<"summ="<<summ(a);
    return 0;
}