#include<stdio.h>
#include<string.h>
#include<ctype.h>
#define MAX_LENGTH 101
void highlight_vowels(char *s){
    if(s == NULL){
        return;
    }
    int i = 0;
    while(s[i] !='\0'){
        char ch = s[i];
        if(isalpha(ch)&&ch !=' '){
            printf("Invalid input\n");
            return;
        }
        if(ch == 'a' || ch = 'e' || ch = 'i' || ch = 'o' || ch = 'u'){
            s[i] = toupper(ch);
        }
        i++;
    }
    printf("%s\n",s);
}

    
int main(){
    char str[MAX_LENGTH];
    scanf("%[^n]s", str);
    highlight_vowels(str);
}