#include<stdio.h>
 int main()
 {
   char arr[10]={'a','A','e','E','i','I','o','O','u','U'};
   char ch;
   int i;
   while(scanf("%c",&ch)!=EOF)
   {
	 if(ch!='\n')
	 {
		 for(i=0;i<10;i++)
       {
         if(ch==arr[i])
          {
        	 printf("Vowel\n");
        	 break;
		  } 
       }
     if(i==10)
         printf("Consonant\n");
	 }
   }
   return 0;
}