#!/usr/bin/env python3
#fileencoding: utf-8

N = int(input().strip())
a = [int(i) for i in input().strip().split(" ")]

def headcount(H, L):
    x = 2*(H-1) - L//2
    y = (H-1) - x
    return x, y

end = False
# x: cran, y: turtle
for i in range(N-1):
    for j in range(i+1,N):
        x1, y1 = headcount(N, a[i])
        x2, y2 = headcount(N, a[j])
        x = x1 - x2
        y = y1 - y2

        if x == 1:
            print("%d %d"%(x2+1, y2))
            end = True
        elif x == -1:
            print("%d %d"%(x1+1, y1))
            end = True
        elif y == 1:
            print("%d %d"%(x2, y2+1))
            end = True
        elif y == -1:
            print("%d %d"%(x1, y1+1))
            end = True
        else: # x == 0 and y == 0
            if x == 0 and x1*x2 != 0 and y == 0 and y1*y2 == 0:
                print("%d %d"%(x1+1, 0))
                end = True
            elif x == 0 and x1*x2 == 0 and y == 0 and y1*y2 != 0:
                print("%d %d"%(0, y1+1))
                end = True
        if end:
            break
    if end:
        break