#include <stdio.h>

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

        //실습3//
        printf("%d\n", 5+3);
        pnintf("%d\n", 7*2-4);
        printf("%d\n", 15/2);
    return 0;
}

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