print("{:22}".format("n ≡ ... [4]         |"),end="") 
for n in range(4): 
    print("{:2d}".format(n%4),end=" | ")
print()
print("{:22}".format("2n ≡ ... [4]        | "),end="") 
for n in range(4):
    print("{:2d}".format(2*n %4),end=" | ")
print()
print("{:22}".format("n² + 1 ≡ ... [4]    | "),end="") 
for n in range(4):
    print("{:2d}".format((n**2+1)%4),end=" | ")
print()
print("{:22}".format("2n(n² + 1) ≡ ... [4]| "),end="") 
for n in range(4):
    print("{:2d}".format((2*n*(n**2+1))%4),end=" | ")