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

int main(){
    char str[100];
    fgets(str, sizeof(str), stdin);
    for(int i=0; str[i]!='\0';i++){
        if(isdigit(str[i]) || ispunct(str[i])){
            printf("Invalid input");
            return -0;
        }
    }
    
    for(int i=0; str[i]!='\0',i++){
        if(str[i] == 'a' || str[i] == 'e' || str[i] == 'i' || str[i] == 'o' || str[i] == 'u'){
            str[i]=tpupper(str[i]);
        }
    }
    
    printf("%s", str);
    return 0;
   
}