import sys

def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))

n = II()
x = 0
for _ in range(n):
    k, l, d = LI()
    d2 = 1 << d
    for i in range(k):
        x ^= l+d2*i

print(x)