#include<stdio.h>
#include<ctype.h>
#include<string.h>
void convertvowel(char *s) {
    int len = strlen(s);
    for(int i=0;i<len;i++) {
        if(s[i] == 'a' || s[i] =='e' || s[i] =='i' || s[i] =='o' || s[i] || s[i] =='u') {
            s[i] =toupper(s[i]);
        }
    }
}
int main(){
    char s[100];
    fgets(s,sizeof(s),stdin);
    s[strspn(s, "\n")] =0;
    for(int i=0;s[i] != '\0';i++) {
        if(!isalpha(s[i]) && s[i] != ' ') {
            printf("Invalid input\n");
            return 0;
        }
    }
    convertvowe1(s);
    printf("%s\n",s);
    return 0;
}