import java.util.*; public class Main { public static v | OFF CAMPUS UPDATES

import java.util.*;

public class Main {


public static void main(String[] args){

Scanner sc = new Scanner(System.in);

int applicantID = sc.nextInt();

String s = Integer.toString(applicantID);

for(int i=0; i int a = Character.getNumericValue(s.charAt(i));
if(a%2==0){

a=a+1;
}

else{

a=a-1;
}


System.out.print(a);
}

}
}
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