#include <stdio.h>
#include <string.h>
int main()
{
char yuan[11]={'a','e','i','o','u','A','E','I','O','U'};
int len=strlen(yuan);
char ch;
int i;
while(scanf("%c",&ch)!=EOF)
{
if(ch=='\n'||ch==' '||ch=='\t')
{
continue;
}
for(i=0;i<len;i++)
{
if(yuan[i]==ch)
{
printf("Vowel\n");
break;
}
}
if(i==len)
{
printf("Consonant\n");
}
i=0;
}
return 0;
}

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