#include <stdio.h>
int main() {
char ch;
while (scanf("%s", &ch) != EOF) {
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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