#include<stdio.h>
#include<ctype.h>
#include<string.h>
int is_vowel(char c) {
    char v[] = "aeiouAEIOU";
    for (int i = 0; i < 10; i++) {
        if (c == v[i]) return 1;
    }
    return 0;
}
int is_valid_char (char c) {
    return (c >= 'A' && c <= 'Z') ||
    (c >= 'a' && c <= 'z');
    
}
 int main () {
     char s[101];
     scanf("%100", s);
     for (int i = 0; s[i]; i++) {
         if(!is_valid_char(s[i])) {
             printf("Invalid Input");
             return 0;
         }
     }
     for(int i = 0; s[i]; i++) {
         if(is_vowel(s[i]))
         printf("%c", toupper(s[i]));
         else 
         printf("%c" , s[i]);
     }
     printf(" ");
 
 return 0;
 }