#include<stdio.h>
int main()
{
    char sum;
    scanf("%c",&sum);
    
    if (sum>'a'||sum<'z'||sum>'A'||sum<'Z')(
      if (sum == 'a' || sum == 'e' || sum == 'i' || sum == 'o' || sum == 'u' ||
        sum == 'A' || sum == 'E' || sum == 'I' || sum == 'O' || sum == 'U')
        {
        printf("%c is a vowel", sum);
        }
        else {
            printf("character %c is a consonant", sum);
            
        });
        return 0;
}