import java.io.*; /** * String 使用 toCharArray() 方法转换成 char[] */ public class Main { public static BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); public static BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out)); public static StreamTokenizer cin = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in))); public static PrintWriter cout = new PrintWriter(new OutputStreamWriter(System.out)); public static void main(String[] args) throws Exception { String s1 = in.readLine(); char[] c = s1.toCharArray(); for (char t : c) { if (t == 'a' || t == 'e' || t == 'i' || t == 'o' || t == 'u') { cout.print(t); } } cout.flush(); } }
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