text: #include <stdio.h>
  #include <string.h>
  
  int isAEIOU (char ch) {
  	if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u' ||
  	    ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U')
  		return 1;
  	else
  		return 0;
  }
  
  int main () {
  
  	char src [100];
  	char dst [100];
  	while (gets (src) != NULL) {
  		int i, j = 0, size = strlen (src);
  		for (i = 0; i < size; i++) {
  			if (isAEIOU (src[i])) {
  				dst[j++] = src [i];
  			}
  		}
  		dst[j] = '\0';
  		puts (dst);
  	}
  }