import java.util.Scanner;
public class ja{
public static void main(String[] args){
Scanner scn= new Scanner(System.in);
System.out.println("请输入字符串:");
String str= scn.next();
System.out.println("请输入单个字符:");
String ch= scn.next();
System.out.println(str.replaceAll(ch, ""));
}
}