#include<stdio.h>
int main()
{
    int temp=0;
    char crr;
    char vowel[10]={'a','A','e','E','i','I','o','O','u','U'};
    while(scanf("%c",&crr)!=EOF)
    {
        if(crr != '\n')
        {
        for(temp=0;temp<10;temp++)
        {
            if(crr == vowel[temp])
            {
                printf("Vowel\n");
                temp = 20;
            }
        }
        if(temp == 10)
            {
                printf("Consonant\n");
            }
        }
    }
    return 0;
}