#include <iostream>
using namespace std;
int main(){
    int n,a1,a2;
    cin>>n>>a1>>a2;
    int init=a1,min=a2-a1;
    for(int i=0;i<n-2;i++){
        a1=a2,cin>>a2;
        if(min>a2-a1){
            min=a2-a1;
        }
    }
    cout<<min<<endl<<a2-init<<endl;
}