#include <stdio.h>
#include <ctype.h>
int main()
{
    char ch;
    while(scanf("%c",&ch)!=EOF)
    {
        if(ch==' '||ch=='\n')
        {
            continue;
        }
        char s=tolower(ch);
        if(s=='a'||s=='e'||s=='i'||s=='o'||s=='u')
        {
            printf("Vowel\n");
        }
        else
        {
            printf("Consonant\n");
        }

    }
    return 0;
}