#include <stdio.h>
int main()
{
char ch = 0;
while(~scanf("%c", &ch))
{
getchar();//吸收回车字符,即\n
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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