#include<iostream>
using namespace std;
int main()
{
    int n;
    cin>>n;
    try 
    {
        if(n<=0||n>12)
        {
            throw"Invalid input";
        }
        int deposit;
        int total=0;
        for (int i=0;i<n;i++)
        {
            cin>>deposit;
            if(deposit<0)
            {
                throw"Invalid input;
            }
            total+=deposit;
        }
        
    +}
}