a, b = map(int, input().split())print(a*b)

a, b = map(int, input().split())print(a-b)

a, b = map(int, input().split())print(a+b)

print('Hello World!')

[나의 풀이] import java.util.Scanner; public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String str = sc.next(); int n = sc.nextInt(); for(int i = 0; i < n; i++) { System.out.print(str); } } } [다른 사람의 풀이] import java.util.Scanner; public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String str = sc.ne..

[첫 번째 시도] import java.io.*; import java.util.Arrays; public class Main { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); //단어 입력받기 String str = br.readLine(); //문자 배열 생성하기 char[] chArr = str.toCharArray(); int check = 0; //팰린드롬 확인 for(int i = 0; i < (str.length() / 2); i++) { if(chArr[i] == chArr[str.length() -..