#include <iostream>
//using namespace std;
int IsPrime(int n)
{
if (n < 2)
return 0;
int k = n / 2;
while (n % k)
{
k--;
}
return(k > 1)?0:n;
}
main()
{
int a, b, c, s;
std::cin >> a >> b >> c;
s=IsPrime(a)+IsPrime(b)+IsPrime(c);
std::cout << s << "\n";
std::cout << ((IsPrime(s))?"Yes":"No");
}
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