算法day1---回文

输入"noon" 输出"noon"
输入"noo" 输出"noon"
输入“sakura" 输出"arukas"

def cal(num1):
    def judge(num):
        for i in range(0,len(num)):
            # print(num[0])
            # print(num[-(i+1)])
            if num[i] != num[-(i+1)]:
                return False
        return True
    a = judge(num1)
    if a:
        return True
    reverse_list = ""
    for sb in range(len(num1)-1,-1,-1):
        reverse_list +=num1[sb]
    # print(reverse_list)
    for m in range(len(reverse_list)-1,-1,-1):
        num3 = num1
        num3+=reverse_list[m::]
        if judge(num3):
            print(num3)
            return True
cal("我妈一天只晓得看熊猫")