#include <iostream>
#include <windows.h>
using namespace std;
int main()
{
int n, t;
cin>>t;
cin>>n;
int l[n];
int suma=0;
while(n--)
{
cin>> l[n];
suma=suma+l[n];
};
cout<<suma<<endl;
system("pause");
return 0;
}
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