// tested by Hightail - https://github.com/dj3500/hightail
import std.stdio, std.string, std.conv, std.algorithm;
import std.range, std.array, std.math, std.typecons, std.container, core.bitop;

void main() {
    int n = readln.chomp.to!int;
    auto x = readln.split.to!(int[]);
    int ev, od;
    foreach (xi ; x) {
        if (xi & 1) od++;
        else ev++;
    }
    writeln(abs(ev - od));
}

void scan(T...)(ref T args) {
    string[] line = readln.split;
    foreach (ref arg; args) {
        arg = line.front.to!(typeof(arg));
        line.popFront();
    }
    assert(line.empty);
}