A10175. Cracking the Code
编程题
普及/提高-
知识点
题目描述
The protection of a popular program developed by one of IT City companies is organized the following way. After installation it outputs a random five digit number which should be sent in SMS to a particular phone number. In response an SMS activation code arrives.
A young hacker Vasya disassembled the program and found the algorithm that transforms the shown number into the activation code. Note: it is clear that Vasya is a law-abiding hacker, and made it for a noble purpose — to show the developer the imperfection of their protection.
The found algorithm looks the following way. At first the digits of the number are shuffled in the following order <first digit><third digit><fifth digit><fourth digit><second digit>. For example the shuffle of $12345$ should lead to $13542$ . On the second stage the number is raised to the fifth power. The result of the shuffle and exponentiation of the number $12345$ is $455 422 043 125 550 171 232$ . The answer is the $5$ last digits of this result. For the number $12345$ the answer should be $71232$ .
Vasya is going to write a keygen program implementing this algorithm. Can you do the same?
A young hacker Vasya disassembled the program and found the algorithm that transforms the shown number into the activation code. Note: it is clear that Vasya is a law-abiding hacker, and made it for a noble purpose — to show the developer the imperfection of their protection.
The found algorithm looks the following way. At first the digits of the number are shuffled in the following order <first digit><third digit><fifth digit><fourth digit><second digit>. For example the shuffle of $12345$ should lead to $13542$ . On the second stage the number is raised to the fifth power. The result of the shuffle and exponentiation of the number $12345$ is $455 422 043 125 550 171 232$ . The answer is the $5$ last digits of this result. For the number $12345$ the answer should be $71232$ .
Vasya is going to write a keygen program implementing this algorithm. Can you do the same?
输入格式
The only line of the input contains a positive integer five digit number for which the activation code should be found.
输出格式
Output exactly $5$ digits without spaces between them — the found activation code of the program.
输入输出样例
输入 #1
12345
输出 #1
71232