#include<bits/stdc++.h> using namespace std; using Int = long long; template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;} template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;} //INSERT ABOVE HERE signed main(){ Int n; cin>>n; vector<Int> a(n); for(Int i=0;i<n;i++) cin>>a[i]; Int x=a[1]-a[0]; for(Int i=1;i<n;i++) chmin(x,a[i]-a[i-1]); cout<<x<<endl<<a.back()-a.front()<<endl; return 0; }