#include<stdio.h>
#include<ctype.h>
#include<string.h>
int is_vowel(char c)
{
    c = tolower(c);
    return(c=='a' || c=='e' || c=='i' ||c=='o' || c=='u');
}
int is_valid_char(char c)
{
    char s[101];
    fgets(s, sizeof(s), stdin);
    s[strcspn(s, "\n")] = '\0';
    int len = strlen(s);
    if(len < 14 || len > 100)
    {
        printf("Invalid input\n");
        return 0;
    }
    for (int i = 0; i < len; i++)
    {
        if (!is_valid_char(s[i]))
        {
            printf("Invalid input\n");
            return 0;
        }
    }
    for (int i = 0; i < len; i++)
    {
        if (is_vowel(s[i])
        {
            s[i] = toupper(s[i]);
        }
    }
    printf("%s\n", s);
    return 0;
}