include <stdio.h>

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

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