#include<stdio.h>
int main()
{
    char ch;

    scanf("%c",&ch);

    if(ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u'){
        printf("%c is vowel\n",ch);
    }
    else{
        printf("%c is consonant\n",ch);
    }

    return 0;
}