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

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