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 9.2.1) (judge verdict: Runtime Error)

#include <stdio.h>
 
int main(void)
{
  /* 変数の定義 */
  char alphabet[26] = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
  int count = 0;
  char input_string[40];
  
  /* 文字列の入力 */
  if( scanf("%d", &count) == 1);
  if( scanf("%s", &input_string[0]) == 1);
  
  	int i = 0;
	while(input_string[i] != '\0'){
      for(int j=0;j<26;j++){
        if(input_string[i] == alphabet[j]){
          printf("%c",alphabet[j+2]);
        }
      }      
		i++;
	}

  return 0;
}