#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");*/

    
    //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 ("15 나누기 2의 결과는 %d입니다.\n", 15/2);
   
        
        
        return 0;
}

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