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

int isValidChar(char c) {
    return (c >= 32 && c <= 126); // Printable ASCII range
}

int isVowel(char c) {
    char lower = tolower(c);
    return (lower == 'a' || lower == 'e' || lower == 'i' || lower == 'o' || lower == 'u');
}

int main() {
    char s[105];
    if (!fgets(s, sizeof(s), stdin)) {
        printf("Invalid input\n");
        return 0;
    }
    // Remove newline
    s[strcspn(s, "\n")] = 0;

    for (int i = 0; s[i] != '\0'; i++) {
        if (!isValidChar(s[i])) {
            printf("Invalid input\n");
            return 0;
        }
    }

    for (int i = 0; s[i] != '\0'; i++) {
        if (isVowel(s[i])) {
            s[i] = toupper(s[i]);
        }
    }

    printf("%s\n", s);

    return 0;
}