n = int(input())
s = [0,0,0]
for i in range(n):
    b = input().split()
    for j in range(1, 4):
        s[j - 1] += int(b[j])
for i in range(3):
    s[i] //= n
print(str(s[0]) + " " + str(s[1])+ " " + str(s[2]))