# coding: utf-8

def main():
    N = int(input())
    n = list(input().split(' '))
    remainders = [int(n[i+1]) - int(n[i])  for i in range(N-1)] 
    print(min(remainders))
    print(int(n[N-1])-int(n[0]))

if __name__ == '__main__':
    main()