#include <stdio.h>

int main() {

    //실습1//
    printf("😘\n"); 

    //실습2//
    /* printf("Hello, world"); 
    printf("안녕하세요");
    printf("1234567890");
    printf("abcdefg"); */

    //실습3//
    /*printf("Hello,World안녕하세요.1234567890abcdefg");*/

    //실습4//
    /*printf("Hello, world\n"); 
    printf("안녕하세요\n");
    printf("1234567890\n");
    printf("abcdefg\n"); */

    //실습5//
    printf("Hello,World\n안녕하세요.\n1234567890\nabcdefg\n");
    
    return 0;
}