#include <stdio.h>
#include <ctype.h>

int main() {
    char s[50] = {0};
    scanf("%s", s);
    int i = 0;
    while (s[i]) {
        if (isalpha(s[i])){
            switch (s[i]){
                case 'z':
                    s[i] = 'a';
                    break;
                case 'Z':
                    s[i] = 'A';
                    break;
                default:
                    s[i]++;
            }
        }
        i++;

    }
    printf("%s\n", s);
    return 0;
}