#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#define MAX_LENGTH 101
void highlight_voewls(char *s) {
    if(s == NULL) {
        return;
    }
    int i=0;
    while(s[i] !='\0') {
        char ch =s[i];
        if(!isalpha(ch) && ch !=' ') {
            printf("Invalid input\n");
            return 0;
        }
        if(ch == 'a' || ch == 'i' || ch == '0' || ch == 'u') {
            s[i] = toupper(ch);
        }
        i++;
    }
    printf("%s\n", s);
    
}
int main() {
    char str[MAX_LENGTH];
    scanf("%[^\n]s",str);
    highlight_vowels(str;)
}