from numpy.linalg import solve
N = int(input())
A = input().split()
a = 0
for i in A:
    a += int(i)
num = a / (N - 1)
left = [[1, 1], [2, 4]]
right = [N, num]
X = solve(left, right)[0]
Y = solve(left, right)[1]
print(int(X), int(Y))