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