#include <stdio.h>

int main() {
    //실습5//
 /*   int n;
    scanf("%d",&n);
    printf("입력받은 값=%d\n",n); */

    //실습 6//
    /*int a,b;
    scanf("%d",&a);
    scanf("%d",&b);
    printf("입력받은 값=%d,%d\n",a,b);*/
    
    //실습7//
  /*  float n;
    scanf("%f", &n);
    printf("입력받은 값=%f\n", n);
    return 0; */

    //실습8//
    double a,b;
    scanf("%lf%lf", &a, &b);
    printf("입력받은 값=%.14lf, %.14lf\n", a,b);
}