#include<stdlib.h>
#include<iostream>
using namespace std;

int main(){
	char *value = getenv("NUMBER_OF_GEESE");
	if(value == 0) {
		puts("No variable called NUMBER_OF_GEESE found");
		return 1;
	}

	string cpp_value = value;
	string output_message = "The number of geese is:  " + cpp_value + "\n";
	cout << output_message;
	return 0 ;
}