#include<stdio.h>
#include<ctype.h>
#include<string.h>
int main(){
    char s[101];
    int i, valid = 1;
    scanf("%s", s);
    for(i = 0; s[i] != '\0'; i++){
        if(!isalpha(s[i])){
            valid = 0;
            break;
        }
         char ch = s[i];
        if(ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' || ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U'){
            s[i] = toupper(ch);    
        }
    }
    if(!valid){
        printf("Invalid input");
    else
        printf("%s", s);
    return 0;
}