points = int(input()) max_x = 0 max_y = 0 min_x = 100 min_y = 100 for i in range(points): x, y = tuple(map(int, input().split(","))) max_x = max(max_x, x) max_y = max(max_y, y) min_y = min(min_y, y) min_x = min(min_x, x) print(f"{min_x-1},{min_y-1}") print(f"{max_x+1},{max_y+1}")