#include<stdio.h>
#include<ctype.h>
int main(){
    char s[101];
    int i,invalid=0;
    fgets(s,101,stdin);
    for(i=0;s[i] && s[i]!='\n';i++){
        if(!isalpha(s[i]) && s[i]!= ''){ invalid =1;break;}
    }
    if(invalid){
        printf("Invalid input");
        return 0;
    }
    for(i=0;s[i] && s[i]!='\n';i++){
        char c=s[i];
        if(c=='a' || c=='e' || c=='i' || c=='o' || c=='A' || c=='E' || c=='I' || c=='O' || c=='U')
          putchar(toupper(c));
        else
          putchar(c);
    }
    return 0;
}