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

int main() {
    
    char str[101];
    
    fgets(str, sizeof(str), stdin);
    str[strcspn(str, "\n")] = '\0'
    int i = 0;
    while(str[i] != '\0') {
        char ch = str[i];
        ch = tolower(ch);
        if(!isalpha(ch) && ch != ' ') {
            printf("Invaid input");
            return 0;
        }
        
        if(ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
            str[i] = toupper(ch);
        }
        
        i++;
    }
    
    
    printf("%s", str);
    return 0;
    
}