import std.algorithm;
import std.array;
import std.bigint;
import std.conv;
import std.math;
import std.range;
import std.stdio;
import std.string;
import std.typecons;

T read(T)() { return readln.chomp.to!T; }
T[] reads(T)() { return readln.split.to!(T[]); }
alias readint = read!int;
alias readints = reads!int;

void main() {
    auto x = BigInt("177635683940025046467781066894531");

    int m = readint;
    if ((x % m) % 2 == 0)
        writeln("even");
    else
        writeln("odd");
}