用getchar吸收掉'\n'
int main()
{
char ch = 0;
while(scanf("%c",&ch) != EOF)
{
getchar();
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;
}