//C语言版代码 #include <stdio.h> int main() { char s[100], t[100]; scanf("%s%s", s, t); printf("%s%s\n", s, t); return 0; } //C++版代码 #include <iostream> using namespace std; int main() { string s, t; cin >> s >> t; cout << s << t; return 0; } //Java版代码 import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String s = sc.next(); String t = sc.next(); System.out.println(s + t); } }