#include<cstdio>
#include<cmath>

long long gcd(long long a,long long b){ return b?gcd(b,a%b):a; }

int main(){
    int n;
    scanf("%d",&n);
    for(int i = 1; i <= n; i++) if(i%2) printf("%d ",i);
    printf("\n");
    
    return 0;
}