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

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