class Problem0716:
    def solve(this):
        n = int(input())
        a = list(map(int, input().split()))
        a.sort()

        mi = 100000
        for i in range(1, len(a)):
            mi = min(mi, abs(a[i] - a[i-1]))

        print(mi)
        print(abs(a[0] - a[n-1]))
            
if __name__ == "__main__":
    problem = Problem0716()
    problem.solve()