#include <stdio.h>
int main()
{
    char i;
    while((scanf("%c",&i))!=EOF){
        getchar();
        if(i=='A'||i=='a'||i=='E'||i=='e'||i=='I'||i=='i'||i=='O'||i=='o'||i=='U'||i=='u')
            printf("Vowel\n");
        else
            printf("Consonant\n");
    }
    return 0;
}