#include<stdio.h>
#include<string.h>
#include<ctype.h>
int main() {
    char s[200];
    fgets(s, sizeof(s),stdin);
    s[strcspn(s, "\n")] = '\0';
    int len = strlen(s);
    if(len < 15 || len > 100) {
        printf("Invalid input");
        return 0;
    }
    for(int i = 0; i < len; i++) {
        if(!isalpha(s[i])) {
            printf("Invalid input");
            return 0;
        }
    }
    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]=='A'||s[i]=='E'||s[i]=='I'||s[i]=='O'||s[i]=='U');
        printf("%c", toupper(s[i]));
     else {
          printf("%c", s[i]);  
        }
        return 0;
    }
}