#include <stdio.h>

int main() {
    int i = 0;
    int n = 0;
    int arr[100] = {0};
    int count = 0;
    while(scanf("%d",&n)!=EOF)
    {
        for(i = 2;i<n ;i++)
        {
           arr[i] = i;
        }
        for(i = 2;i<n;i++)
        {
            int j = 0;
            for(j = 2;j<i;j++)
            {
                if(i%j==0)
                arr[i] = 0;
            }
        }
        for(i =2;i<=n;i++)
        {
            if(arr[i]!=0)
            printf("%d ",arr[i]);
            else
            {
                    count++;
            }
        }
        printf("\n%d\n",count);
    }
    return 0;
}