The password of a safe is a six-digit number, the lowest digit is 6, the fifth digit is 5, the ones digit is twice the tens digit, the sum of the first four digits and the last three The sum of digits is 17, the highest digit is the smallest composite number, what is the password of this safe.
一个保险柜的密码是一个六位数，最低位上的数字是6，第五位数字是5，个位上的数字是十位上的数字的2倍，前四位数字的和与后三位数字的和都是17，最高位是最小的合数，这个保险柜的密码是多少．
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