def g(v):
    r = 0
    while v%4!=3:
        r ^= v
        v -= 1
    return r

def f(k,L,d):
    r = 0
    v = L>>d
    # v ^ v+1 ^ ... ^ v+k-1
    r ^= g(v+k-1)^g(max(v-1,0))
    return (r<<d) ^ (0 if k%2==0 else L&((1<<d)-1))

n = int(input())
r = 0
for _ in range(n):
    K,L,D = map(int,input().split())
    r ^= f(K,L,D)
print(r)