C++ :

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a,n,b;
	cin>>a>>n>>b;
    if(a+n>b&&a+b>n&&n+b>a)
    {
    	cout<<"yes"<<endl<<a+n+b;
	}
	else
	{
		cout<<"no"<<endl<<a+n+b;
	}
	return 0;
}