#include<cstdio> #include<iostream> using namespace std; const int maxn=50+5; char a[maxn]; int n; int main() { cin>>n; cin>>a; for(int i=0;i<=55;i++){ a[i]=a[i]+n; if(a[i]>'z') a[i]=a[i]-26; cout<<a[i]; } return 0; } 帮帮忙