#include<stdio.h>
#include<ctype.h>
#include<string.h>
int main(){
    char str[1000];
fgets(str,sizeof(str),stdin);
for(int i=0;str[i]!='\0';i++){
    char ch = str[i];
    if(!isalpha(ch)&&ch!''&&ch!='\n'){
        return 0;
    }
    if(isalpha(ch)){
        if(islower(ch)){
            str[i]='z'-(ch-'a');
        }else{
            str[i]='Z'-(ch-'A');
        }
    }
}
printf("%s",str);
return 0;
}