#include<iostream>
#include<stdlib.h>

using namespace std;

void run();

int main()
{
    run();
    return EXIT_SUCCESS;
}

void run()
{
    int n;
    int a[1000] = {-9999999};
    cin>>n;
    for(int i=0; i<n; i++){cin>>a[i];}
    int min = a[1]-a[0];
    for(int i=1; i<n; i++){
        if(min>a[i]-a[i-1]){ min = a[i]-a[i-1];}
    }
    cout<<min<<endl;
    cout<<a[n-1]-a[0]<<endl;
}