我们来做一个游戏.请你随便选一个四位数.当然1 000就是一个四位数,但这个数太简单了,我们挑一个复杂的,做起来更有趣.比如说,我们选1234吧!下一步怎么做呢?请把这个数的每一位数字都平方,然后相加,得到一个新数,即1~2+2~2+3~2+4~2=1+4+9+16=30,这样一来,原来的数就变成了30.再将30的每一位数字都平方,然 We do a game, please choose a random four-digit, of course, 000 is a four-digit number, but this number is too simple, we pick a complex, to make it more interesting ... For example, we choose 1234! What to do next? Please put every digit of this number square, and then add a new number, that is, 1 ~ 2 +2 ~ 2 +3 ~ 2 +4 ~ 2 = 1 +4 +9 + 16 = 30, this way, the original number becomes 30. And then every 30 digits are square, then