#! usr/bin/env python
# -*- coding: utf-8 -*-


def main():
    n, a = int(input()), list(map(int, input().split()))

    min_d, max_d = 10 ** 6, -1
    for i in range(n):
        for j in range(i+1, n):
            min_d = min(min_d, abs(a[j]-a[i]))
            max_d = max(max_d, abs(a[j]-a[i]))

    print(min_d)
    print(max_d)


if __name__ == '__main__':
    main()