from sys import stdin, stdout
input = lambda: stdin.readline().rstrip()
write = stdout.write

def main():
    N = int(input())
    A = tuple(map(int, input().split()))

    min_ = float('inf')
    for i in range(1, N):
        min_ = min(min_, A[i] - A[i-1])
    print(min_)
    print(A[-1] - A[0])

main()