#include <bits/stdc++.h>
using namespace std;
typedef long long iint;
int main() {
int n;
cin >> n;
for (int i = 1; i <= n; i++) {
if (i % 2 != 0) {
cout << i << " ";
}
}
for (int i = 1; i <= n; i++) {
if (i % 2 == 0) {
cout << i << " ";
}
}
}
I2luY2x1ZGUgPGJpdHMvc3RkYysrLmg+CnVzaW5nIG5hbWVzcGFjZSBzdGQ7CnR5cGVkZWYgbG9uZyBsb25nIGlpbnQ7CgppbnQgbWFpbigpIHsKICAgIGludCBuOwogICAgY2luID4+IG47CiAgICBmb3IgKGludCBpID0gMTsgaSA8PSBuOyBpKyspIHsKICAgICAgICBpZiAoaSAlIDIgIT0gMCkgewogICAgICAgICAgICBjb3V0IDw8IGkgPDwgIiAiOwogICAgICAgIH0KICAgIH0KICAgIGZvciAoaW50IGkgPSAxOyBpIDw9IG47IGkrKykgewogICAgICAgIGlmIChpICUgMiA9PSAwKSB7CiAgICAgICAgICAgIGNvdXQgPDwgaSA8PCAiICI7CiAgICAgICAgfQogICAgfQp9