#include <iostream>
using namespace std;
int main(){
    int n;cin>>n;
    int a[n];
    int mn = 1000000;
    for(int i = 0; n > i; i++){
        cin>>a[i];
        if(i!=0){
            mn = min(mn,a[i]-a[i-1]);
        }
    }
    cout << mn << endl;
    cout << a[n-1]-a[0] << endl;
}