C :

#include<stdio.h>
int main()
{
    int i=0;
    char s[6];
    scanf("%s",s);
    for(i=0;i<5;i++)
    {
                    s[i]=s[i]+4;
    }
    printf("%s\n",s);
    return 0;
}

C++ :

#include <stdio.h>  
main()   
{
char c1='C',c2='h',c3='i',c4='n',c5='a';  
  c1+=4;  
  c2+=4;  
  c3+=4;  
  c4+=4;  
  c5+=4;  
  printf("%c%c%c%c%c\n",c1,c2,c3,c4,c5);  
}

Java :

import java.util.Scanner;

public class Main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input  = new Scanner(System.in);
		String s = input.next();
		for(int i = 0; i < s.length(); i ++){
			System.out.printf("%c",s.charAt(i)+4);
		}
		
	}

}

Python :

str =raw_input()
print chr(ord(str[0:1]) + 4)+chr(ord(str[1:2]) + 4)+chr(ord(str[2:3]) + 4)+chr(ord(str[3:4]) + 4)+chr(ord(str[4:5]) + 4)