#include <iostream>
using namespace std;

int main( int argc, char *argv[] ) {
	int x = 123789;
	
	if (argc > 1) x = atoi( argv[ 1 ] );
	
	// extraire l'unité
	int u = x % 10;
	
	// la comparer
	if ((u == 1) || (u == 3) || (u == 5) || (u == 7) || (u == 9)) {
		cout << x << " est impair" << endl;
	} else {
		cout << x << " est pair" << endl;
	}
	
	return EXIT_SUCCESS;
}