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

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