可以简化一下这段代码吗？

def odd_num(xnum):
    odd = []
    even = []
    for i in range(xnum+1):
        if i%2 == 0:
            even.append(i)
        else:
            odd.append(i)
    print(f"Odd numbers under {xnum} are listed below:\n")
    print('\n'.join([str(i) for i in odd]))
    print()
    print(f"Even numbers under {xnum} are listed below:\n")
    print('\n'.join([str(i) for i in even]))
    print()
    
odd_num(15)

先用列表，再统一print