given that p is a positive even integer with a positive units digit , if the units digit of p ^ 3 minus the units digit of p ^ 2 is equal to 0 , what is the units digit of p + 4 ?
n0 = 3.0
n1 = 2.0
n2 = 0.0
n3 = 4.0
t0 = n0 + n0
answer = n3 + t0
print(answer)