C :

int main(n){scanf("%d",&n);if(n&1)printf("odd\n");else printf("even\n");}

C++ :

#include<iostream>
using namespace std;
int main(){
	int a;
	cin>>a;
	if(a%2) cout<<"odd\n";
	else cout<<"even\n";
	return 0;
}

Pascal :

var n:integer;
begin
  readln(n);
  if n mod 2=0 then writeln('even');
  if n mod 2<>0 then writeln('odd');
end.