#include <stdio.h>
#include <ctype.h>
#include <string.h>
void convertvowel(char*s)
{
    int len=strlen(s);
    for(int i=0;i<len;i++){
        char c =tolower(s[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[strspn(s, "\n")]='\0';
    for (int i =0;s[i];i++)
    {
       if(!isalpha(s[i]) && s[i] !=' '){
            printf("Invalid input\n");
            return 1;
        }
    }
    convertvowel(s);
    printf("%s",s);
}