Chewbacca and Number
说明
A. Chewbacca and Number
time limit per test
1 secondmemory limit per test
256 megabytesinput
standard inputoutput
standard outputLuke Skywalker gave Chewbacca an integer number x. Chewbacca isn't good at numbers but he loves inverting digits in them. Inverting digit t means replacing it with digit 9-t.
Help Chewbacca to transform the initial number x to the minimum possible positive number by inverting some (possibly, zero) digits. The decimal representation of the final number shouldn't start with a zero.
Input
The first line contains a single integer x (1≤x≤1018) − the number that Luke Skywalker gave to Chewbacca.
Output
Print the minimum possible positive number that Chewbacca can obtain after inverting some digits. The number shouldn't contain leading zeroes.
Examples
Input
27
Output
22
Input
4545
Output
4444