#include <stdio.h>
int main()
{
int n = 0;
int arr[100] = { 0 };
//多组输入
while (~scanf("%d", &n))
{
//将2~n的数存起来
int i = 0; //循环变量
for (i = 2; i <= n; i++)
{
arr[i] = i;
}
//开始筛选
for (i = 2; i <= n; i++)
{
int j = 0;
for (j = 2; j < i; j++)
{
if (i % j == 0)
{
arr[i] = 0;
}
}
}
int cnt = 0;
//输出
for (i = 2; i <= n; i++)
{
if (arr[i] != 0)
{
printf("%d ", arr[i]);
}
else
{
cnt++;
}
}
printf("\n%d\n", cnt);
}
return 0;
}
int main()
{
int n = 0;
int arr[100] = { 0 };
//多组输入
while (~scanf("%d", &n))
{
//将2~n的数存起来
int i = 0; //循环变量
for (i = 2; i <= n; i++)
{
arr[i] = i;
}
//开始筛选
for (i = 2; i <= n; i++)
{
int j = 0;
for (j = 2; j < i; j++)
{
if (i % j == 0)
{
arr[i] = 0;
}
}
}
int cnt = 0;
//输出
for (i = 2; i <= n; i++)
{
if (arr[i] != 0)
{
printf("%d ", arr[i]);
}
else
{
cnt++;
}
}
printf("\n%d\n", cnt);
}
return 0;
}