题解

#include<bits/stdc++.h>
using namespace std;
int main(){
	string s;
	cin >> s;
	for(int i=0;i<s.size();i++){
		if(s[i]=='z'||s[i]=='Z') s[i]-=25;
		else if(s[i]>='A'&&s[i]<'Z'||(s[i]>='a'&&s[i]<'z'))s[i]+=1;
	}
	cout << s;
	return 0;
}