#include <stdio.h>

int main()
{
printf("Podaj wartosc do zadania 3\n");
    double a, b,suma;
    char c;
    scanf_s("%lf %lf %c", &a, &b, &c);
    switch (c) {
    case '+': suma = a + b;
        break;
    case '-': suma = a - b;
        break;
    case '/': suma = a / b;
        break;
    case '*': suma = a * b;
        break;
    }
    printf("%.2lf %c %.2lf = %.2lf \n", a,c,b,suma);
return 0;
}