Write a program that reads a number and prints its hexadecimal representation reversed. Follow the convention to use the letters from ‘A’ to ‘F’ to represent the values from 10 to 15.
Input
Input consists of a natural number.
Output
Print, reversed, the hexadecimal representation of the number, with as many zeros at its left as required.
Input
16
Output
01
Input
1023
Output
FF3
Input
90800
Output
0B261
Input
65547
Output
B0001
Input
0
Output
0
Input
1000000000
Output
00ACA9B3