#include <stdio.h>
#include <iostream>
#define int long long
using namespace std;
double a, b, d;
char c;
signed main(){
	cin >> a >> c >> b;
	if(c == '+')
		d = a + b;
	else if(c == '-')
		d = a-b;
	else if(c == '*')
		d = a*b;
	else if(c == '/'){
		if(b == 0){
			puts("No Answer.");
			return 0;
		}
		else
			d = a / b;
	}
	else{
		puts("No Answer.");
		return 0;
	}
	printf("%.2lf\n",d);
	return 0;
}