#include<stdio.h>
#include<string.h>
#include<ctype.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] =='u')
            {
                s[i] = toupper(s[i]);
            }
        }
    
    int main()
    {
        char s[100];
        fgets(s,sizeof(s),stdin);
        s[strcspn(s,"\n")]=0;
        for(int i=0;s[i]!='\0';i++)
        {
            if(!isalpha(s[i]) && s[i] !=' ')
            {
                printf("Invalid input\n");
                return 1;
            }
        }
        convertVowel(s);
        printf("%s\n",s);
        return 0;
        
    }