Untitled

#include <iostream>
#include <string>
using namespace std;

int main()
{
    string str;

    getline(cin, str);

    for (int i = 0; i < str.length(); i++)
    {
        if (str[i] == 90)
        {
            str[i] = 66;
        }
        else if (str[i] == 122)
        {
            str[i] = 98;
        }
        else if (str[i] == 89)
        {
            str[i] = 65;
        }
        else if (str[i] == 121)
        {
            str[i] = 97;
        }
        else if (str[i] != 32) str[i] += 2; 
    }
    cout << str;
}