def main():
    n = int(input())
    a = list(map(int, input().split()))
    mi, ma = float("inf"), -1
    for i in range(n):
        for j in range(n):
            if i == j:
                continue
            mi = min(mi, abs(a[i] - a[j]))
            ma = max(ma, abs(a[i] - a[j]))
    print(mi)
    print(ma)


if __name__ == '__main__':
    main()