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: Accepted)

#include<stdio.h>
#include<string.h>

char al[26]= "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

int main(){
   int n,i=0;
   scanf("%d ", &n);
   char str[10004];
   for(int j=0;j<10004;j++){ str[j]='2';}
   scanf("%s",str);
   //printf("%d\n", ii);
  while(str[i+1]!='2'){
    printf("%c", str[i]+n<91?str[i]+n:str[i]+n-26);
    i++;
   }
  // printf("%c\n",al[25]);
	return 0;
 
}