#include <iostream>//c++
using namespace std;
int main()
{
    int n,a[n];cin>>n;
    for(int i=0;i<n;i++) cin>>a[i];
    int sum=0;
    for(int i=0;i<n;i++) sum+=a[i];
    cout<<sum/n<<endl;
    if(sum%n==0)
        cout<<"no";
    else
        cout<<"yes";
    return 0;
}

n=int(input())
s=1
y=0
0<n<100
while s<=n:
x=int(input())
x>=0
y=y+x
s=s+1
z=y//n
print(z)
m=y%n
if m==0:
print("no")
else:
print("yes")