/******************************************************************************
Welcome to GDB Online.
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C#, VB, Perl, Swift, Prolog, Javascript, Pascal, HTML, CSS, JS
Code, Compile, Run and Debug online from anywhere in world.
*******************************************************************************/
#include <iostream>
using namespace std;
int main()
{
int a[10];
for(int i=0;i<10;i++)
{
cin>>a[i];
}
bool trovato=false;
for(int i=0;i<10;i++)
{
int somma=0;
for(int j=0;j<i;j++)
{
somma=somma+a[j];
}
for(int j=i+1;j<10;j++)
{
somma=somma+a[j];
}
if(somma==a[i])
{
trovato=true;
}
}
if(trovato)
{
cout<<"trovato";
}
else
{
cout<<"non trovato";
}
}