#include <cstdio>

int main()
{
  printf("Enter first number: ");
  int a;
  scanf("%d",&a);

  printf("Enter second number: ");
  int b;
  scanf("%d",&b);

  printf ("Choose the action: '+' or '-' or '*' or '/' : ");
  char g;
  scanf(" %c",&g);

  double z;

  if (g == '+') z = a + b;
  else if (g == '-') z = a - b;
  else if (g == '*') z = a * b;
  else if (g == '/') z = (double)a / b;
  else {
    printf("You choose incorect action.");
    return 0;
  }

  printf("Anser is: %f", z);
  return 0;
}