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

void convertVowel(char *s) {
    int len = strlen(s);
    for(int i=0;i<len;i++) {
        if(s[i] == 'a' || s[i] == 'e') ||s[i] =='i' || s[i] ='o' || s[i] == 'u' {
             s[i] = toupper(s[i]);
        }
    }
}
int main() {
    char s[100];
    fgets(s,sizeof(s),stdin);
    s[strcspn(s, "\n")] = 0;
    for(int i=0;s[i] !='\0';i++) {
        if(!isalpha(s[i]) && s[i] != '') {
            printf("Invalid input\n");
            return 1;
        }
    }
    convertVowel(s);
    printf("%s\n",s);
    return 0;
}