include

include

using namespace std;

const int N = 510; int a[N][N]; int n;

int main(){

cin >> n;
for(int i=0;i<n;i++)
	for(int j = i+1;j<n;j++){
    	cin >> a[i][j];
        a[j][i] = a[i][j];
    }
int ans = 0;
for(int i=0;i<n;i++){
	sort(a[i],a[i]+n);
    ans = max(ans,a[i][n-2]);
}

cout << 1 << endl;
cout << ans ;
return 0;       

}