include<iostream>

using namespace std;

int main()

{ int a;

char c;

cin >> a;

while (cin >> c)
{
    if (c + a <=122)
    {
        c = c + a;
        cout <<(char)c;
    }
    else
    {
        c = (a+c-122) % 26 + 96;
        cout <<(char) c;
    }

}
return 0;

}```cpp