#include<stdio.h>
#include<ctype.h>
#include<string.h>
void encodeMessage(char *input){
    int len = strlen(input);
    for (int i = 0; i < len; i++){
        char ch = input[i];
        if (isalpha(ch)){
            if (islower(ch)){
                input[i] = 'a'+ ('z' - ch);
            } else if(isupper(ch)){
                input[i]= 'A' + ('Z' - ch);
                
        }
        else if(ch !=' '){
            printf("Invalid Input");
            return;
                
        }
            }
    printf("%s\n", input);
        
}
    int main(){
    char message[10001];
    fgets(message, sizeof(message), stdin);
    size_t len = strlen(message);
    if (len > 0 && message[len -1] == '\n'){
    }
    encodeMessage(message);
    return 0;
}