题解

#include<iostream>
#include<cstring>
using namespace std;
int main(){
int n;
char a[110]={};
cin>>n>>a;
for(int i=0;i<strlen(a);i++){
if(a[i]+n%26>'z'){
a[i]-=26-n%26;
}
else{
a[i]+=n%26;
}
}
cout<<a<<endl;
return 0;
}