x = 0
for _ in [0]*int(input()):
    K, L, D = map(int, input().split())
    L2 = L>>D
    while(K>0 and L2%4!=0):
    	x ^= L
    	L += 1<<D
    	L2 += 1
    	K -= 1
    while(K%4!=0):
    	x ^= L+((K-1)<<D)
    	K -= 1
print(x)