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

int main () {
    char s[101];
    fgets(s,sizeof(s),stdin);
    
    int n = strlen(s);
    
    if (s[n-1] == '\n'){
        s[n-1] = '\0';
        n--;
    }
    for(int i = 0;i < n;i++) {
        if(!isalpha(s[i]) && s[i] != '') {
            printf("Invalid input");
            return 0;
        }
    }
    for(int i = 0;i < n;i++) {
        char c = s[i];
        if(c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u')
        s[i] = toupper(c);
        else if(c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U')
        s[i] = c;
    }
    printf("%s", s);
    
    return 0;
}