题解 | 牛牛的空格分隔

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        char a = in.next().charAt(0);
        int b = in.nextInt();
        double c = in.nextDouble();
        System.out.printf("%c %d %f", a, b, c);
    }
}