题

#include <bits/stdc++.h>
using namespace std;
int main(){
char a[10000];
gets(a);
int len = strlen(a);
for(int i =0;i<len;i++){
if(a[i]>='a' && a[i]<='y'||a[i]>='A'&&a[i]<='Y'){
a[i]+=1;
}
else if(a[i]>='z' && a[i]<='z'||a[i]>='Z'&&a[i]<='Z'){
a[i]-=25;
}
}
cout << a;
return 0;

}