//#pragma GCC target("popcnt")
#include <ios>
int a,b,c,d,e,f,l,k,p,w,n;
int pref[1000001],wyn[1000001];
int popcount(int i){
    int ret=0;
    while (i){
        ret+=i&1;
        i>>=1;
    }
    return ret;
}
int main(){
    scanf("%d", &n);
    for (a=1; a<=n; ++a)
        pref[a]=pref[a-1]+popcount(a);
    a=n;
    while (n){
        while (pref[a]>=n)
            --a;
        wyn[w++]=a+1;
        n-=popcount(a+1);
    }
    printf("%d\n", w);
    for (a=0; a<w; ++a)
        printf("%d ", wyn[a]);
}