文件目录

#include <iostream>
using namespace std;
int main()
{
    char mm[200] = {};
    for (int i = 0; i < 128; i++)
        mm[i] = i;
    for (int i = 'a'; i <= 'z'; i++)
        mm[i] = i + 1;
    mm['z'] = 'a';
    for (int i = 'A'; i <= 'Z'; i++)
        mm[i] = i + 1;
    mm['Z'] = 'A';
    string s;
    getline(cin, s);
    for (int i = 0; s[i]; i++)
        cout << mm[s[i]];
    return 0;
}