import java.util.Scanner;

class main{
    public static void main(String args[]){
	Scanner scan = new Scanner(System.in);
	String str = scan.next();

	String wooser = "";

	for(int i = 0; i < str.length(); i++){
	    char ch = str.charAt(i);

	    int no = i + 1;

	    wooser = wooser + String.valueOf((char)(str.charAt(i) + no));

	}
	
	System.out.println(wooser);
	
    }
    
}