#include <stdio.h>

int main() {
   //실습1//
   /* printf("5*3/2\n");
      printf("7*7*3.14\n");
      printf("4.5*4.5*4.5\n");*/

    
    //실습2//
    /* printf(""%d\n");*/

    
    //실습3//
   /* printf("%d\n",5+3);
    printf("%d\n",7*2-4);
    printf("%d\n",15/2);*/
    
    //실습4//
    printf("5+3=%d\n",5+3);
    printf("7*2-4의 결과는 %d입니다.\n",7*2-4);
    printf("15나누기 2의 결과는%d입니다.\n",15/2);
    
    return 0;
}

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