Problem:
Score : 200 points

Problem Statement

We have a string S consisting of uppercase English letters. Additionally, an integer N will be given.

Shift each character of S by N in alphabetical order (see below), and print the resulting string.

We assume that A follows Z. For example, shifting A by 2 results in C (A \to B \to C), and shifting Y by 3 results in B (Y \to Z \to A \to B).

Constraints

0 \leq N \leq 26

1 \leq |S| \leq 10^4

S consists of uppercase English letters.

Input

Input is given from Standard Input in the following format:

N
S

Output

Print the string resulting from shifting each character of S by N in alphabetical order.

Sample Input 1

2
ABCXYZ

Sample Output 1

CDEZAB

Note that A follows Z.

Sample Input 2

0
ABCXYZ

Sample Output 2

ABCXYZ

Sample Input 3

13
ABCDEFGHIJKLMNOPQRSTUVWXYZ

Sample Output 3

NOPQRSTUVWXYZABCDEFGHIJKLM

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
#include<string.h>
 
int main(){
	int a;
  	char s[26]={"abcdefghijklmnopqrstuvwxyz"};
  	char h[10002]; 	
  	scanf("%d %s",&a,h);
	
  	for(int i=0; i<strlen(h); i++){
      for(int j=0; j<26; j++){
      	//if(strcmp(h[i],s[j])==0){
        if(h[i]==s[j]){
        	printf("%c", h[i+a]);
        }
      }
    }
  
  	printf("\n");
  
  return 0;
}